AWS today announced that its DeepComposer keyboard is now available for purchase. And no, DeepComposer isn&t a mechanical keyboard for hackers but a small MIDI keyboard for working with the AWS DeepComposer service that uses AI to create songs based on your input.

First announced at AWS re:Invent 2019, the keyboard created a bit of confusion, in part because Amazonannouncement almost made it seem like a consumer product.

DeepComposer, which also works without the actual hardware keyboard, is more of a learning tool, though, and belongs to the same family of AWS hardware like DeepLens and DeepRacer. Itmeant to teach developers about generative adversarial networks, just like DeepLens and DeepRacer also focus on specific machine learning technologies.

Users play a short melody, either using the hardware keyboard or an on-screen one, and the service then automatically generates a backing track based on your choice of musical style.

The results I heard at re:Invent last year were a bit uneven (or worse), but that may have improved by now. But this isn&t a tool for creating the next Top 40 song. Itsimply a learning tool. I&m not sure you need the keyboard to get that learning experience out of it, but if you do, you can now head over to Amazon and buy it.

Giving people even more of a reason to stay home and follow the social distancing measures designed to stop the spread of COVID-19 in the U.S., HBO said it would be making 500 hours of programming free to stream over HBO NOW and HBO GO without a subscription, starting Friday, April 3.

Shows that audiences can stream include some of the best television shows ever made, like &The Sopranos& and &The Wire,& and other very good HBO shows like &Veep& and &Six Feet Under.&

Movie titles like &Pokémon Detective Pikachu&, &Crazy, Stupid, Love& and back catalog gems like (one of my favorite movies of all-time) &Empire of the Sun& join docuseries including &McMillion$& and &The Case Against Adnan Syed& as free-to-stream offerings as well.

Viewers who want to watch what is inarguably the best show ever made (it&The Wire&) can download the HBO NOW or HBO GO apps or visit HBONOW.comorHBOGO.com.

The networkdistribution partners will also make the shows available to stream for free in the coming days, the company said. This offer marks the first time that HBO has made this amount of programming available for free outside of the paywall on either of its apps, the company said.

The full list of HBO content available to stream without a subscription includes:

• Ballers (5 Seasons)

• Barry (2 Seasons)

• Silicon Valley (6 Seasons)

• Six Feet Under (5 Seasons)

• The Sopranos (7 Seasons)

• Succession (2 Seasons)

• True Blood (7 Seasons

• Veep (7 Seasons)

• The Wire (5 Seasons)

10 Docuseries and Documentaries

• The Apollo

• The Case Against Adnan Syed

• Elvis Presley: The Searcher

• I Love You, Now Die: The Commonwealth v. Michelle Carter

• The Inventor: Out for Blood in Silicon Valley

• Jane Fonda in Five Acts

• McMillion$

• True Justice: Bryan StevensonFight for Equality

• United Skates

• We Are the Dream: The Kids of the MLK Oakland Oratorical Fest

20 Warner Bros. Theatricals

• Arthur

• Arthur 2: On the Rocks

• Blinded By the Light

• The Bridges of Madison County

• Crazy, Stupid, Love

• Empire of the Sun

• Forget Paris

• Happy Feet Two

• Isn&t It Romantic?

• The Lego Movie 2: The Second Part

• Midnight Special

• My Dog Skip

• Nancy Drew and the Hidden Staircase

• Pan

• Pokémon Detective Pikachu

• Red Riding Hood

• Smallfoot

• Storks

• Sucker Punch

• Unknown

With the national stockpile of inventory of life-saving healthcare equipment getting dangerously close to zero, President Trump on Thursday signaled that he will leverage a key national security provision to order additional companies to produce ventilators.

Trumpreluctance to employ the law known as the Defense Production Act (DPA) has puzzled many as the administration attempts to right the myriad early wrongs that allowed the novel coronavirus to spread within the nationborders — an unprecedented modern public health crisis expected to claim as many as 200,000 lives in the U.S.

&Today, I have issued an order under the Defense Production Act to more fully ensure that domestic manufacturers can produce ventilators needed to save American lives,& Trump said in a statement. &My order to the Secretary of Health and Human Services and the Secretary of Homeland Security will help domestic manufacturers like General Electric, Hill-Rom, Medtronic, ResMed, Royal Philips, and Vyaire Medical secure the supplies they need to build ventilators needed to defeat the virus.&

The order will enable Health and Human Services Secretary Alex Azar to use &any and all authority available& to steer production efforts.

&… The president is gonna use that DPA to make sure the American people and our healthcare professionals get the PPE, the medicines, everything we need,& White House advisor Peter Navarro said in the White House briefing Thursday

After much early confusion around the presidentwillingness to invoke the DPA without actually putting it to use, Trump appeared to change course and on Friday wielded the law against General Motors, which had already announced its intention to start manufacturing ventilators in spite of a lack of federal guidance. That heel-turn came two days after Trump was poised to announce a deal with GM and ventilator maker Ventec Life Systems to produce up to 80,000 devices. The announcement was reportedly scuttled when the White House and FEMA balked at the effort$1 billion price tag.

Trump has repeatedly called the crisis-level demand for ventilators, masks and other medical supplies into question. &I have a feeling that a lot of the numbers that are being said in some areas are just bigger than they&re going to be,& Trump told Fox News host Sean Hannity last week. &I don&t believe you need 40,000 or 30,000 ventilators.& The president has also repeatedly questioned the nationwide shortage of N95 masks and other basic health protective gear, suggesting that in New York health facilities are somehow losing the masks or allowing them to be stolen, a false claim for which there is no evidence.

As states still compete for vital life-saving resources, federal orders through the DPA would force any private companies on the receiving end of an order to prioritize federal contracts. The law also allows the federal government to use its muscle to ensure that supply chains are able to produce and provide materials every step of the way. While much has been made of the lawpotency to mobilize supplies in the midst of a national crisis, the Trump administration will likely need to actively manage and coordinate with these newly tapped manufacturers to see such orders through.

In dragging its feet to issue orders through the DPA, Trump appeared to put full faith in the private sector to step up on their own without a directive from the White House. While some companies indeed did just that, those nascent production efforts are nowhere near meeting demand, and distribution issues are not resolved. With the outbreak threatening regions around the nation, many states forge ahead without vital life-saving supplies, as the acute health crisis unfolding in New York offers a glimpse of a potentially disastrous near-future.

There have been a few scattered efforts to leverage crowd-sourced self-reporting of symptoms as a way to potentially predict and chart the progress of COVID-19 across the U.S., and around the world. A new effort looks like the most comprehensive, well-organized and credibly backed yet — and it has been developed in part by Pinterest co-founder and CEO Ben Silbermann.

Silbermann and a team from Pinterest enlisted the help of high school friend, and CRISPR gene-editing pioneer / MIT and Harvard Broad Institute member, Dr. Feng Zhang to build what Silbermann termed in a press release a &bridge between citizens and scientists.& The result is the How We Feel app that Silbermann developed along with input from Zhang and a long list of well-regarded public health, computer science, therapeutics, social science and medical professors from Harvard, Stanford, MIT, Weill Cornell and more.

How We Feel is a mobile app available for both iOS and Android, which is free to download, and which is designed to make it very easy to self-report whether or not they feel well — and if they&re feeling unwell, what symptoms they&re experiencing. It also asks for information about whether or not you&ve been tested for COVID-19, and whether you&re in self-isolation, and for how long. The amount of interaction required is purposely streamlined to make it easy for anyone to contribute daily, and to do so in a minute or less.

The app doesn&t ask for or collect info like name, phone number or email information. It includes an up-front request that users agree to donate their information, and the data collected will be aggregated and then shared with researchers, public health professionals and doctors, including those who are signed on as collaborators with the project, as well as others (and the project is encouraging collaborators to reach out if interested). Part of the team working on the project are experts in the field of differential privacy,and a goal of the endeavor is to ensure that peopleinformation is used responsibly.

The How We Feel app is, as mentioned, one of a number of similar efforts out there, but this approach has a number of advantages when compared to existing projects. First, ita mobile app, whereas some rely on web-based portals that are less convenient for the average consumer, especially when you want continued use over time. Second, they&re motivating use through positive means — Silbermann and his wife Divya will be providing a donated meal to nonprofit Feeding America for every time a person downloads and uses the app for the first time, up to a maximum of 10 million meals. Finally, italready designed in partnership with, and backed by, world-class academic institutions and researchers, and seems best-positioned to be able to get the information it gathers to the greatest number of those in a position to help.

How We Feel is organized as an entirely independent, nonprofit organization, and ithoping to expand its availability and scientific collaboration globally. Itan ambitious project, but also one that could be critically important in supplementing testing efforts and other means of tracking the progress and course of the spread of SARS-CoV-2 and COVID-19. While self-reported information on its own is far from a 100% accurate or reliable source, taken in aggregate at scale, it could be a very effective leading indicator of new or emerging viral hotspots, or provide scientific researches with other valuable insights when used in combination with other signals.

We have airplanes and drones in our airspace and satellites in space, but what about the space in between: the stratosphere?

There are platforms, such as blimps, balloons and high-altitude long endurance (HALE) fixed-wing platforms that can duplicate functions now performed by drones or satellites in a more technically and commercially viable manner.

Commercial drones operate in our airspace below 400 feet. Commercial aircraft fly between 9-12km (30,000-39,000 feet). Satellites operate in low Earth orbit (LEO, 500-1200km), mid Earth orbit (MEO, 2000-36,000km) and geostationary Earth orbit (GEO, 36,000km).

But what about the vast space in between our air space and LEO? The approximately 488km of space known as the stratosphere, is, at present, largely uninhabited and underutilized.

The problem

Imagine if a platform wants to loiter over a single point on the Earth for an extended period of time, either to maintain situational awareness and consistent surveillance over an area of interest or maintain communications. For example, after a natural disaster, it would be invaluable and life saving to have eyes, ears and a voice in the sky monitoring and helping the afflicted. Or what if the platform were able to monitor a natural disaster before it made landfall to collect better data on the stormsize, location and path?

Other reasons why it might be advantageous to have persistent real-time video from the sky is surveillance of vast maritime regions and borders, identification of objects of interest and monitoring events, including storms, fires and environmental disasters, on behalf of first responders and enforcement agencies.

Another example could be global internet connectivity. If platforms mesh together and talk to one another, they could connect the world below in a much more effective and efficient manner than ground-based fiber optic cables. It could monitor our oceans or protect vulnerable people from exploitation. And the potential military, intelligence and governmental applications are obvious and substantial.

In short, the applications are abundant and the potential market for this type of platform massive.

Possible existing solutions

Right now, the prevalent existing airborne platforms are drones and planes, and the prevalent existing space-based platforms are satellites. Each platform has various benefits, but none are optimized for many of the missions described above and, thus, do not necessarily accomplish those missions in the most efficient and effective manner.

Quadcopter drone Pro: Cheap, close to the ground Con: Can fly for only on average 30 minutes (unless you are using Impossible AerospaceUS-1 that has over two hours of flight time), needs access to the ground below, small field of view from 400 feet, can be easily detected	Image Credits: Impossible Aerospace
Uncrewed plane Pro: Larger field of view from 30,000 feet Con: Can fly for only the number of hours fuel is available, expensive, can be detected	Image Credits: alxpin (opens in a new window) /Getty Images
Constellation of LEO satellites Pro: Large field of view from 500-1,200km Con: One would need hundreds or thousands of satellites in orbit for full-world coverage since the 90-minute orbits have access only over a single point on the Earth for ~15 minutes of the ~90 minute orbit; also, the satellite needs to be successfully launched from a rocket, escape Earthvelocity and operate for years in the radioactive vacuum of space (which, while easier and less expensive than a GEO satellite, still requires a fair amount of effort and expense)	Image Credits: Spire Global
GEO satellite Pro: Covers one-third of the Earth Con: Large (school-bus sized), expensive (many millions of dollars), takes years (sometimes decades) to design/build/launch and does not provide the necessary low resolution or short latency	Image Credits: NASA/Leif Heimbold (opens in a new window) / Wikimedia Commons (opens in a new window) under a CC BY-SA 2.0 (opens in a new window) license.

The solutions above are optimized for other types of critical missions. For example, drones are great for monitoring crops or inspecting infrastructure (as Drone Deploy software enables) or delivering emergency medical supplies (which Zipline and Google Wing are doing). Remotely-operated planes like General Atomics MQ-1 Predator have offensive military applications.

Constellations of LEO satellites in space, like Spire Global, can provide maritime, aviation and weather monitoring and prediction, or take photos of the world, as Planet Labs does. Lastly, GEO satellites can also be used for monitoring weather, communication and surveillance, but at a high level, not localized.

Possible future solutions

There are a handful of companies working on solutions specifically optimized for the mission of loitering over a single point. These solutions include balloons, blimps and HALE (high-altitude long endurance) platforms in the stratosphere.

Balloons

Image Credits: WorldView

Companies like Loon, WorldViewand WindBorne use air currents in the stratosphere to loiter over a single point. Their platforms have no propulsion on board and the structure consists of two balloons, a lift and a ballast balloon. The lift balloon contains either helium or hydrogen and is sealed with special UV-coated material. They use a compressor to add or remove air from the ballast balloon so that it becomes lighter or heavier to make the balloon go up or down depending on wind speed and direction and which air current they would like to ride.

• Pro: You cannot see these balloons from the ground with the naked eye or with most types of current ground-based tracking systems. They are fairly cheap, can be launched easily and can loiter over a single area for days or even months at a time.
• Con: Without propulsion, balloons are difficult to navigate through intense stratospheric winds, so it might be hard to precisely navigate and keep the balloons over the specific area of interest. The balloons are not recoverable when the flight terminates, although when the balloon bursts and returns to Earth you might be able to recover the payload.

Blimps

Image Credits: MR1805 (opens in a new window) / Getty Images

• Pro: They are fairly large so they can carry heavier payloads and provide more power to the payload. You can re-land the entire platform to either fix or recover the payload, and launch it multiple times.
• Con: They can be seen from the ground because they are so large, which makes them vulnerable to being shot down. Companies like Sceye and Altaeros are using the Goodyear Blimp with some tech upgrades. Their airships either have propulsion or are tied to the ground below, so they can better control where they are going, and they have upgraded UV and ozone-resistant skin.

HALE fixed-wing

Companies like Zenith and Skydweller are working on high-altitude long endurance (HALE) fixed-wing platforms. These high-aspect-ratio aircraft (which means long but slender wings) are powered by sunlight hitting the solar panels on the wings. The power that is generated can either power the plane and payload or be stored in the batteries. Therefore, if enough power is generated and stored during the day to last throughout the night, the plane can fly indefinitely.

• Pro: They can be precisely controlled by a pilot.
• Con: They have limited power for the payload, as most of the power generated is needed to power the aircraft.

*TRL: technology readiness level

For all of these platforms, there will be additional challenges in the areas of manufacturing and mission management. The platforms need to be manufactured and launched cheaply, quickly and reliably. This takes time and money. Additionally, there are issues relating to who will monitor the platforms once they are in the stratosphere — the company that built the platform or the customers whose payload the platform is holding?

Another issue that platforms that operate in the stratosphere will face relates to who regulates the stratosphere. Obviously, putting and operating platforms in the stratosphere raises a number of regulatory and legal questions that will have to be resolved.

I believe there is enough room in this market (and certainly in the stratosphere) for all of these platforms to be successful. They complement existing platforms such as drones and satellites and, for certain critical missions, can be more effective and efficient than their counterparts that operate in the airspace or in LEO/GEO.

Despite reports of historic unemployment, with roughly 6.6 million Americans filing for unemployment, domestic stocks rose during regular trading today.

One day after grim estimates on the potential death toll from the COVID-19 epidemic in the U.S. sent stocks tumbling, and amid a continuing economic fallout from the governmentresponse to slow the spread of the disease, all three major U.S. indices gained.

Meanwhile, the federal government in the U.S. continues to work on the specifics of how to funnel nearly $2 trillion into the American economy as part of the CARES Act stimulus package. And pharmaceutical and medical device companies are working day and night to develop better diagnostics tools and novel therapies to treat the virus while potential vaccines slowly make their way through the regulatory approval process.

Herethe tale of the tape:

• Dow Jones Industrial Average: +469.93, +2.24%
• S-P 500: +56.40, +2.28%
• Nasdaq Composite: +126.73, +1.72

The tech-heavy Nasdaq rose the least of the major indices, indicating that the up-day wasn&t as bright for the technology industry. This fact was underscored by aselloff among shares of SaaS and cloud stocks, as measured by the Bessemer cloud index that fell 1.4% on the day. The Nasdaq remains in bear market territory.

After-hours today, shares of Tesla shot higher after the electric car company announced delivery numbers that delighted investors. The volatile company announced 88,400 deliveries for the three-month period, ahead of expectations of 79,900 (per FactSet).

Looking ahead, it doesn&t feel like the market has digested the scale of economic impact that the new unemployment claims implies; with employment falling sharply, demand contracting and economies around the world prioritizing safety over commerce, the world could be in for more than an economic pause, or lull. We may be staring down the first weeks of a depression.