IEEE Spectrum describes how the U.S. Defense Advanced Research Projects Agency (DARPA) partnered with Pivot Technology Services to help them relocate their massive radio-frequency emulation testbed, called "Colosseum." The testbed was built for the agency's Spectrum Collaboration Challenge (SC2) -- a three-year competition to demonstrate the validity of using AI to work together in order to use wireless spectrum more efficiently than operating on pre-allocated bands. Slashdot reader Wave723 shares an excerpt from the report: Colosseum was originally built and housed at Johns Hopkins University Applied Physics Laboratory. That changed at the beginning of October, when the testbed was dismantled and later trucked to Los Angeles for the competition's finale, scheduled to begin at 3:30pm PDT today at MWC Los Angeles. [...] There may have been some molehills during the checks, but moving Colosseum definitely qualifies as a mountain. The testbed uses 3 Peta-Ops per second of computing power and 52 terabytes per second of data to emulate 65,000 channel operations between 256 wireless devices. It can draw up to 92 kilowatts of power and requires 200 gallons of water per minute to cycle through its cooling system to keep it from overheating.

Colosseum is housed within a space twice of the size of a cargo container -- in fact, its housing is literally built from two converted cargo containers put side by side. The halves arrived at the Los Angeles Convention Center during the set-up for MWC Los Angeles, and were hauled into the building and onto the convention floor by two 18-wheelers. We're going to move right past the crazy fact that DARPA and its hired logistics companies drove two semi-trucks into the Los Angeles Convention Center, because it gets better. To actually lower Colosseum's halves onto the ground, the next step involved something that both Tilghman and Gabel referred to as a "forklift ballet." As it turned out, the convention center didn't have a forklift strong enough to lift either half, so everyone improvised and used four smaller forklifts simultaneously by carefully arranging them around each half of Colosseum. It worked, but Gabel, in showing me a video of the forklift ballet, pointed out a moment where one of the forklift's rear wheels lifted off the ground as the machine and its operator grappled with Colosseum's weight...

SpaceX president Gwynne Shotwell said the goal is to complete six to eight Starlink launches to get sufficient coverage to start offering the service to consumers in 2020. SpaceNews reports: SpaceX is confident it can start offering broadband service in the United States via its Starlink constellation in mid-2020, the company's president and chief operating officer Gwynne Shotwell said Oct. 22. Getting there will require the company to launch six to eight batches of satellites, Shotwell told reporters during a media roundtable. SpaceX also has to finish the design and engineering of the user terminals, which is not a minor challenge, Shotwell acknowledged.

SpaceX CEO Elon Musk has a Starlink terminal at his house and he used it to send a tweet early on Oct. 22. "Sending this tweet through space via Starlink satellite," he tweeted to his 29 million followers. "Whoa, it worked!!" Shotwell said SpaceX will need to complete six to eight Starlink launches -- including the one that already took place in May -- to ensure continuous service in upper and lower latitude bands. "We need 24 launches to get global coverage," she said. "Every launch after that gives you more capacity." SpaceX wants to offer the service to the U.S. government but is now focused on how it will serve the consumer market. Many of the details of how the service will be rolled out remain to be worked out, she said. When possible it will be offered directly to consumers following Musk's Tesla model for selling cars. In many countries the company will be required to partner with local telecom firms to offer the service. Last week, the company requested the International Telecommunication Union to approve spectrum for 30,000 Starlink satellites that would be in addition to the 12,000 already approved by the U.S. FCC.

An anonymous reader quotes a report from TechSpot: 5G wireless technology is the next big thing in the mobile industry, and ISPs are pushing it quite heavily. Unfortunately for Verizon, the company's efforts to promote its implementation of 5G have not been perfect lately. The ISP announced that its 5G network would be available in three NBA arenas (with seven more planned to receive it) in the coming months -- however, even in that relatively small area, the 5G coverage is not strong enough to support the entire arena. According to Ars Technica, the network will only cover "certain seating areas." NFL stadiums are in a similar boat -- Verizon is bringing 5G to those arenas, too, but only select seats will have access. Of course, the average football stadium is considerably bigger than most basketball stadiums, so that's a bit more understandable. Verizon's 5G coverage will first extend to three NBA arenas -- Chase Center in San Francisco, Phoenix's Talking Stick Resort Arena, and the Pepsi Center In Denver -- and then to seven more by the end of the 2019-2020 basketball season.

In the latest swirl of T-Mobile-Sprint merger drama, Colorado is exiting a lawsuit challenging the deal after Dish Network agreed to house its new wireless headquarters in the state. The Verge reports: The Colorado Attorney General's Office announced its decision on Monday after Dish promised that the state would be one of the first in the nation to receive 5G services and become the home of its new wireless headquarters, creating thousands of jobs. The DOJ approved the T-Mobile-Sprint merger back in July after it was able to piece together a new wireless competitor by allocating some of Sprint's spectrum to Dish. The Federal Communications Commission formally voted to approve the merger late last week. Dish is positioned to become the third largest wireless competitor after negotiations with the Justice Department to approve the merger.

Dish won't be building out a new headquarters, however. The company already houses its call center employees at the "Riverfront" facility in Littleton, Colorado and any new wireless HQ employees will work in that building (which looks eerily like a Cabela's location) as well. Colorado was formerly part of a multistate lawsuit spearheaded by the New York State Attorney General's office aimed at blocking the merger. Colorado is now the second state to drop out of the suit along with Mississippi. A trial date is set for December 9th. In a press release, Dish said that it "expects to employ 2,000 full-time employees" at the Colorado headquarters over the next three years. "The agreements we are announcing today address those concerns by guaranteeing jobs in Colorado, a statewide buildout of a fast 5G network that will especially benefit rural communities, and low-cost mobile plans," Chief Deputy Attorney General Natalie Hanlon Leh said in a statement to The Colorado Sun. "Our announcement today ensures Coloradans will benefit from Dish's success as a nationwide wireless competitor."

Long-time Slashdot reader Kekke shared this article from Ars Technica: A potentially serious vulnerability in Linux may make it possible for nearby devices to use Wi-Fi signals to crash or fully compromise vulnerable machines, a security researcher said.

The flaw is located in the RTLWIFI driver, which is used to support Realtek Wi-Fi chips in Linux devices. The vulnerability triggers a buffer overflow in the Linux kernel when a machine with a Realtek Wi-Fi chip is within radio range of a malicious device. At a minimum, exploits would cause an operating-system crash and could possibly allow a hacker to gain complete control of the computer. The flaw dates back to version 3.10.1 of the Linux kernel released in 2013...

The vulnerability is tracked as CVE-2019-17666. Linux developers proposed a fix on Wednesday that will likely be incorporated into the OS kernel in the coming days or weeks. Only after that will the fix make its way into various Linux distributions.

Nico Waisman, who is a principal security engineer at Github [and discovered the bug] said he has not yet devised a proof-of-concept attack that exploits the vulnerability in a way that can execute malicious code on a vulnerable machine. "I'm still working on exploitation, and it will definitely... take some time (of course, it might not be possible)," he wrote in a direct message. "On paper, [this] is an overflow that should be exploitable. Worst-case scenario, [this] is a denial of service; best scenario, you get a shell."
The article notes that the flaw "can't be triggered if Wi-Fi is turned off or if the device uses a Wi-Fi chip from a different manufacturer."

hcs_$reboot writes: Everyone in California will now receive earthquake alerts on their phones seconds before the ground begins to shake, giving residents up to 20 seconds of warning before shaking begins. Developed by seismologists at the University of California, Berkeley, the MyShake application (residents will need to download the app to receive the alerts in areas without cell phone coverage) is designed to alert the public when a magnitude 4.5 earthquake or greater has been detected and has been shown to be faster than other alert delivery methods. The wireless emergency alerts will be sent in the event of a more significant quake, magnitude 5.0 or greater. The system does not predict earthquakes. Rather, it uses numerous seismic stations to detect the start of an earthquake and light-speed communications to send the data to computers that instantly calculate location, magnitude, intensity of shaking and create alerts to be distributed to areas that will be affected. When the MyShake app was released back in 2016 it already detected over 200 earthquakes in more than ten countries.

A paper describing the early results gives a general idea of the app's success: "On a typical day about 8,000 phones provide acceleration waveform data to the MyShake archive. The on-phone app can detect and trigger on P waves and is capable of recording magnitude 2.5 and larger events. The largest number of waveforms from a single earthquake to date comes from the M5.2 Borrego Springs earthquake in Southern California, for which MyShake collected 103 useful three-component waveforms. The network continues to grow with new downloads from the Google Play store everyday and expands rapidly when public interest in earthquakes peaks such as during an earthquake sequence."

An anonymous reader quotes a report from Ars Technica: AT&T and other mobile carriers are trying to hide detailed 5G maps from the public despite constantly touting the supposed pace and breadth of their 5G rollouts. With the Federal Communications Commission planning to require carriers to submit more accurate data about broadband deployment, AT&T and the mobile industry's top lobby group are urging the FCC to exclude 5G from the upgraded data collection. "There is broad agreement that it is not yet time to require reporting on 5G coverage," AT&T told the FCC in a filing this week.

As evidence of that "broad agreement," AT&T cited comments by CTIA -- the mobile industry lobby group that represents AT&T, Verizon, T-Mobile, and Sprint. "[A]s CTIA points out, service standards for 5G are still emerging, precluding reporting of service-level coverage for 5G networks (other than the 5G-NR submissions already required)," AT&T wrote. That's a reference to 5G New Radio, the global standard for 5G. CTIA told the FCC in September that it doesn't object to the 5G-NR requirement because "the 5G-NR standards are technical ones; they do not establish what service level consumers should be able to expect when using 5G." But CTIA said requiring more than that would be "premature" because "industry consensus is still emerging around how best to measure the deployment of this still-nascent technology." Verizon also told the FCC in September that "adoption of standardized parameters is premature" for 5G. "Calling 5G a 'still-nascent technology' that can't properly be measured yet raises the question of why carriers have been telling the FCC and public that 5G is guaranteed to revolutionize modern life and that carriers need regulatory favors to speed its rollout," adds Ars Technica. "The mobile industry didn't think it was 'premature' for the U.S. government to preempt local regulation of 5G deployments, an action FCC Chairman Ajit Pai took more than a year ago."

According to The Wall Street Journal, AT&T has agreed to sell its Puerto Rican and U.S. Virgin Islands businesses to Liberty Latin America for $1.95 billion in cash (Warning: source paywalled, alternative source), "allowing the telecommunications giant to shave its debt load and move closer to repurchasing shares." From the report: AT&T's operation in Puerto Rico provides cellular, landline and internet connections. It had 1.1 million wireless subscribers. As part of the deal, about 1,300 AT&T employees will be transferred to Liberty Latin America. The two companies said they expect the deal to close within six to nine months. Puerto Rico and the U.S. Virgin Islands account for a small sliver of AT&T's domestic operations, but shedding the unit will help it work down a large debt load accumulated through its $80 billion-plus acquisition of Time Warner last year. The deal signals progress on AT&T's goal of selling noncore assets, something activist investor Elliott Management Corp., which recently disclosed a stake in the company, is also pushing. AT&T has also sold its stake in streaming service Hulu.

Almost 30 years after the World Wide Web was first invented, there are still billions of people that don't have access to any sort of internet connectivity. Microsoft wants to change that by using its 2017 Airband Initiative to streamline efforts to build out internet access across Africa, Latin America and Asia. "Moving forward, the company plans to connect 40 million people across the world to the internet by 2022," reports Engadget. From the report: Initially, Microsoft will focus on rural and remote communities in Latin America and Sub-Saharan Africa, with other regions to follow. The company adds that it plans to employ a four-part approach that will focus on working with local ISPs and communities to build out affordable and reliable internet access. Microsoft is pushing regulators for access to TV White Space (TVWS), which are wireless frequencies that can be repurposed to deliver internet access across a wide area. Microsoft is also working to build out internet access in rural communities across the U.S. The company currently aims to bring high-speed internet access to more than 9 million people in Iowa, Illinois, Kansas, Nebraska, Oklahoma and Texas.

D-Link won't patch a critical unauthenticated command-injection vulnerability in its routers that could allow an attacker to remotely take over the devices and execute code. Threatpost reports: The vulnerability (CVE-2019-16920) exists in the latest firmware for the DIR-655, DIR-866L, DIR-652 and DHP-1565 products, which are Wi-Fi routers for the home market. D-Link last week told Fortinet's FortiGuard Labs, which first discovered the issue in September, that all four of them are end-of-life and no longer sold or supported by the vendor (however, the models are still available as new via third-party sellers). The root cause of the vulnerability, according to Fortinet, is a lack of a sanity check for arbitrary commands that are executed by the native command-execution function. Fortinet describes this as a "typical security pitfall suffered by many firmware manufacturers." With no patch available, affected users should upgrade their devices as soon as possible.

iTunes is officially dead with the release of macOS Catalina today. Apple decided to break apart the app into separate Apple Music, Podcasts and TV apps. "Each is better at its individuals task than it was as a section within iTunes, which was teetering on collapse like the Jenga tower of various functions it supports," writes Dieter Bohn via The Verge.

"In the early days, iTunes was simply a way to get music onto Apple's marquee product, the iPod music player," reports Snopes. "Users connected the iPod to a computer, and songs automatically synced -- simplicity unheard of at the time." It was the first service to make songs available for 99 cents apiece, and $9.99 for most albums -- convincing many people to buy music legally than seek out sketchy sites for pirated downloads. "But over time, iTunes software expanded to include podcasts, e-books, audiobooks, movies and TV shows," recalls Snopes. "In the iPhone era, iTunes also made backups and synced voice memos. As the software got bloated to support additional functions, iTunes lost the ease and simplicity that gave it its charm. And with online cloud storage and wireless syncing, it no longer became necessary to connect iPhones to a computer -- and iTunes -- with a cable."

What did you like or dislike about iTunes? When you look back at the media player, what are you reminded of?

ugen (Slashdot reader #93,902) writes: Something I discovered today, while trying to change a MAC address on a new MacBook Air (as I did for years on other MacBooks): ifconfig en0 ether "new mac" no longer works. It appears that this is a change made sometime last year, applicable to all Apple newer MacBooks.

Implications of permanently fixed MAC addresses on privacy and security are hard to underestimate. Given that Windows now supports complete Wifi MAC address randomization — I am sad to admit that Microsoft looks like a champion of privacy here. What are your thoughts? Solutions anyone knows of (I'll take a reasonable technical hack).

Here are a few mentions of this elsewhere:
Mac Rumors forums
The GitHub repo for SpoofMAC
A discussion on Stack Overflow
I've seen other theories about what's going on, though the bigger question is still what's the solution? Leave your own thoughts and suggestions in the comments.

And did MacOS stop allowing changes to wifi MAC addresses?

CNBC reports that a popular Twitch poker star has been accused of cheating: Stones Gambling Hall in Sacramento, California says it will not livestream poker games pending an investigation into cheating allegations made against one of the game's players, Mike Postle... The original accusations were made by Veronica Brill, another poker player who has played with Postle on "Stones Live." Since then, others have come forward with similar complaints. Brill has no specific accusation of what Postle is doing and even admits that she can't be sure he is cheating. So why does she think he is cheating? His results are too good, according to Brill. She said (and several professional pokers players who talked to CNBC, agreed) no one could do as well as he has, for as long as he has, on these livestreamed games...

It's not just that Postle is winning, it's how he's winning, that is drawing suspicion. Poker commentator Joey Ingram, poker pro Matt Berkey, and others have spent hours reviewing hands Postle played and found several times where Postle made a fold or a call that wouldn't seem "right" but happened to work out in his favor. Berkey said Postle made plays no pro would ever make, and he did them often, and they worked. Poker is a game of incomplete information. Berkey said Postle played "as if he had perfect information."

Stones Gambling Hall said it has hired an independent investigator to look into the accusations. In a statement Stones Gambling Hall said: "We temporarily halted all broadcasts from Stones. We have also, as a result, halted the use of RFID playing cards." The RFID cards contain chips, that combined with readers in the poker table, transmit information about each player's hole cards, so that viewers can see the cards on the broadcast (which is on a 30-minute delay to protect game integrity). At this point, there is no specific allegation, no "smoking gun" as Berkey said. But many pros are pointing to those RFID cards and the hole card information, saying it's just not possible for Postle to play the way he does and win the way he does.

dryriver shares a report from Euronews: Iraq's government shut off internet access, imposed curfews and deployed elite forces to secure key facilities on Wednesday amid widespread protests aimed at toppling the country's regime. Five people were killed and more than 200 were wounded in the largest display of public anger against Prime Minister Adel Abdul Mahdi's year-old government. Domestic instability could prove to be the final nail in the coffin of Abdul Mahdi's fragile coalition government, sworn in last year as a compromise between rival factions after an inconclusive election.

Counter-terrorism troops were deployed to Baghdad airport where its men fired live ammunition and tear gas at protesters, preventing them from storming the facility. They were also deployed in the southern city of Nassiriya after police "lost control" when gunfights broke out between protesters and security forces, police sources said. Curfews were later imposed in Nassiriya and two other southern cities, Amara and Hilla, the police sources told Reuters, as protests that began on Tuesday over unemployment, corruption and poor public services escalated. Demands on Wednesday included the "fall of the regime" and government and political party buildings set ablaze in two other southern provinces. According to blockage observatory NetBlocks, internet connectivity has fallen below 70% in the capital Baghdad. Additionally, social media platforms Facebook, Twitter and Instagram, as well as WhatsApp, all appeared to have been disabled across Iraq except in the semi-autonomous Kurdistan Region which has a separate internet infrastructure.

At Microsoft's annual Surface press event today, the company announced the Surface Earbuds to rival Apple's AirPods and Amazon's newly announced Echo Buds. What's unique about the Surface Earbuds is that, unlike the other two wireless earphones, they can be used with Alexa, Bixby, Google Assistant, Siri, or any other competitor -- not just with Cortana. VentureBeat reports: Like the Surface Headphones, the Surface Earbuds don't do anything until you pair them. Surface Earbuds communicate over Bluetooth 5.0 with an Android, iOS, or Windows 10 device. Once paired, you can tap and hold either of the buds to trigger the default assistant on your device. To use a different virtual assistant with the Surface Earbuds, just change the default assistant on the paired device.

"Out of the box, it just works," said Surface Earbuds product lead Mohammed Samji. "On PC, it launches Cortana. On iOS, it will launch Siri, unless you've changed it. And I think it might vary depending on the distribution of Android, but all the ones I've tested, the first time I do it, Android asks me what I want as my default." Surface Earbuds still offer a better experience with Cortana (although without the "Hey Cortana" wakeword), Samji made sure to emphasize. Surface Earbuds can do everything with Cortana that the Surface Headphones can do, like chit-chat, interact with your email, check your calendar, get your daily update, and create to-dos. Samji said his team created a more streamlined flow for all this Cortana functionality. It's called Surface Audio. One of the biggest new abilities with the Surface Earbuds is gestures. "Surface Earbuds' gestures include double tap (go in and out of the call, or play/pause), swipe up and down (control volume), or even swipe forward and back (switch tracks in music, switch slides in PowerPoint)," reports VentureBeat. "Specifically on Android, there's also a triple tap to launch Spotify under your phone's lockscreen -- you can triple-tap again to have Spotify to choose another song using its ML."

An anonymous reader quotes a report from Ars Technica: So there's a British woman who's been in the news recently for diagnosing herself with a sensitivity to electromagnetic radiation. She sleeps in a $500 EMF-blocking sack and has reportedly stayed in the sack, from time to time, for 30-hour stretches. The woman -- 70-year-old Rosi Gladwell of Totnes, Devon -- helps lead a small advocacy group on the issue of EMF-related health issues, and she even got the mayor of the Spanish village where she now lives to look into ways to limit Wi-Fi access for residents. She fears that the introduction of 5G mobile networks will kill her. Now seems like a good time to remind readers that there is no evidence to support the idea of "electromagnetic hypersensitivity." The World Health Organization calls it "idiopathic environmental intolerance with attribution to electromagnetic fields," or IEI-EMF.

Since diagnosing herself years ago, Gladwell has taken to sleeping in a sack woven with silver and copper and wraps herself in a protective sheet, according to several British news outlets. (You can find similar on Amazon.) She says that exposures to Wi-Fi and other EMF make her weak, short of breath, and give her pins-and-needle feelings in her face. She spends much of her time in a remote Spanish vacation home where her exposure to EMF is reduced. Still, Gladwell is holding firm in her thinking. Two years ago, she even reportedly got the mayor of the Spanish village Polopos to consider limiting the village's Wi-Fi access. "I am immensely impressed with our local mayor and how seriously he is taking this," Gladwell told the Olive Press at the time. "When talking about the dangers of Wi-Fi technology, he came up with the idea of limiting the hours of access in the village by putting timer switches on the routers in the school, Town Hall, and doctor's surgery." It's unclear if the town enacted the restrictions.

An anonymous reader quotes a report from Motherboard: Soon it may be easier to get your hands on a cable that looks just like a legitimate Apple lightning cable, but which actually lets you remotely take over a computer. The security researcher behind the recently developed tool announced over the weekend that the cable has been successfully made in a factory. MG is the creator of the O.MG Cable. It charges phones and transfers data in the same way an Apple cable does, but it also contains a wireless hotspot that a hacker can connect to. Once they've done that, a hacker can run commands on the computer, potentially rummaging through a victim's files, for instance.

After demoing the cable for Motherboard at the Def Con hacking conference this summer, MG said "It's like being able to sit at the keyboard and mouse of the victim but without actually being there." At the time, MG was selling the handmade cables at the conference for $200 each. Now that production process has been streamlined. This doesn't necessarily mean that factories are churning out O.MG Cables right now, but it shows that their manufacture can be fully outsourced, and MG doesn't have to make the cables by hand.

Wired reports on both Sidewalk, Amazon's new low-bandwidth long-range wireless networking protocol, and Apple's new position- and distance-measuring U1 chip (mentioned in a recent keynote). Apple's U1 chip -- which allows precise, indoor positional tracking via the latest iPhones and will power, at the very least, directional AirDrop file-sharing -- popped up on screen but was never even mentioned. The interest-piquing phrase "GPS at the scale of your living room" was saved for the online iPhone product pages rather than the bombast of the Steve Jobs Theater... Both Amazon and Apple have the hardware scale to build up the base of access points needed to create a useful network before reaching out to, most likely, iOS developers in Apple's case, and hardware makers already on board with Alexa in Amazon's case. For Amazon, in fact, that work has already begun as Sidewalk originally came out of the Ring team's ambition to extend its connected security devices out into gardens. "Ring lighting was the first time we ran into it as a company, because we wanted to extend out onto the sidewalk," says Daniel Rausch, VP of smart home at Amazon (which owns Ring).

The smart outoor Ring lights are already out. Products like the Smart Floodlight and Pathlight list a "wireless connection to the Ring Bridge" in the tech specs but eagle-eyed Ring owners had already started to figure out what band Amazon was playing with for this connection, before the Sidewalk announcement. "They've been using an internal version of the protocol on the freely available and unlicensed 900MHz part of the spectrum already," explains Rausch. "What we realised was 'woah, we can actually do something special'. We can make a version of this protocol which is secure and have this unbelievably ubiquitous coverage if we bring it all together, neighbours and neighbours and neighbours...." An innocent smart dog tracker like Ring Fetch fits perfectly into this model of Amazon-networked communities sharing video, alerts and location tracking.

JustAnotherOldGuy quotes ItsFOSS: The GNOME Foundation is facing a lawsuit from Rothschild Patent Imaging, LLC. Rothschild allege that Shotwell, a free and open source personal photo manager infringes its patent.

Neil McGovern, Executive Director for the GNOME Foundation says "We have retained legal counsel and intend to vigorously defend against this baseless suit. Due to the ongoing litigation, we unfortunately cannot make any further comments at this time."

While Neil cannot make any further comments on this issue, let me throw some lights on this matter. The patent in the question deals with wireless image distribution. The patent is ridiculous because it could mean any software that transfers images from one device to another could be violating this patent.
BoingBoing adds: Rothschild was only recently awarded a patent relating to wifi image transfers, but he has a long history taking companies like Apple and Samsung to court. His LLC was named in 2015 as the single largest nonpracticing entity by defendant count; a NPE is a company or person who holds patents but makes no products, instead pursuing companies that do for settlements. One website counts 30 lawsuits filed since June involving Rothschild Patent Imaging LLC, with more than 100 ongoing.
ZDNet argues the suit " doesn't make much sense. But when has that ever stopped a patent troll?"

An anonymous reader shares a report: Yes, 5G is coming and data rates will improve, but we, the mobile industry, still have a lot of work to do. We could regale you with litanies of woe about roaming and hand-offs, or belabor the small cell backhaul density logjam. But perhaps the best example of roadblocks to 5G is much easier to grasp -- Heat. 5G phones get hot. Really hot. Probably not hot enough to ignite your battery (probably), but enough to generate a definite burning sensation in your pants pockets. At Mobile World Congress in February, we spoke with an engineer from Sony who was demo'ing a phone (behind glass) that was clocking 1 Gbps speeds. Wow, fast. We asked the engineer why it was not going faster and he said "It overheats." A good solid answer, from a nuts-and-bolts-and-antenna person. We will wager any amount that at next year's show, no one on the floor will be as open about this problem.

The big improvement in data rates for 5G will only come with mmWave radios. This is a whole new spectrum band that allows for really high data rates (again, let's set aside the whole densification issue for now). The trouble is that mmWave radios generate a lot of heat. To greatly oversimplify, mmWave frequencies are pretty close to microwave frequencies, as in the thing we use to reheat our lunches. From some of our very recent industry conversations we know that the handset industry is using a tried-and-tested method for dealing with this problem -- ignoring it and hoping it goes away. The whole issue strikes us as one of those issues where middle management really does not want to raise the subject with senior management who have wrapped themselves so tightly around the 5G flagpole. "Uh boss, your pants are literally on fire."