Interesting articles, July 2020

Does the MiG-21 have an undeserved reputation for being unsafe to fly? Everyone agrees it is a difficult plane to land, but the high number of crashes seem due to poor maintenance and to the planes being used for roles they weren’t designed for.
https://www.quora.com/What-is-wrong-with-the-MiG-21-Why-do-they-keep-crashing-all-the-time

The MiG-29 has excellent aeronautical performance, had an advanced missile system for the 1980s and 90s, but is inferior to Western counterparts like the F-16 in every other way (inefficient engines that are a hassle to fix; weak radar; short range, old-fashioned cockpit that forces the pilot to constantly look at gauges, dials, and paper maps in his lap instead of looking out the canopy for enemies).
https://www.airspacemag.com/military-aviation/truth-about-mig-29-180952403/

What a mess: The Indian Army now imports three rifles from three countries that use three different sized bullets.
https://nationalinterest.org/blog/reboot/why-did-indian-army-decide-buy-sig-sauers-716-rifle-164532

Here’s a roundup of a few of the U.S. military’s failed military projects.
https://nationalinterest.org/blog/reboot/5-weapons-us-military-almost-built-disaster-165284

Seventy-five years ago, the first atom bomb was detonated.
https://www.latimes.com/business/story/2020-07-16/trinity-a-bomb-75-years-ago

The USS Yorktown was a U.S. aircraft carrier that sank during the pivotal Battle of Midway in 1942. After being bombed by Japanese planes, it started filling with water and leaning to one side. At 2:28 pm on June 4, all of its crew abandoned ship, convinced it would soon sink.

They were wrong. The damage was not fatal, and from the safety of another U.S. warship, they saw that the Yorktown was still afloat hours later. Fourteen hours after leaving, they started returning to the stricken carrier to fix it. They worked feverishly for the next 24 hours, and were making progress pumping water out of the ship, reducing its tilt. Unfortunately, a Japanese sub spotted them and torpedoed the carrier, this time destroying it for good. The sub also blew up another U.S. ship.

This makes me wonder what would have happened if the crew had never abandoned the Yorktown in the first place. That extra 14 hours of time might have enabled them to sufficiently repair and move the ship out of the area to prevent it from falling prey to the sub.
https://navylive.dodlive.mil/2013/06/02/battle-of-midway-timeline-of-significant-events/

The 1941 Pearl Harbor attack cost over 2,000 Americans their lives. In 1944, an accidental explosion involving naval ammunition killed another 163 to 392 people at the Harbor.
https://nationalinterest.org/blog/reboot/forgotten-history-1944-pearl-harbor-once-again-went-flames-164267

The B-1B bomber has a 1:1 digital simulation, and soon the UH-60L helicopter will, too.
‘It is taking each aircraft apart piece by piece, scanning them using high-fidelity scanners, and creating three-dimensional (3D) computer-aided design (CAD) models of the parts.’
https://www.janes.com/defence-news/news-detail/wichita-state-university-creates-digital-models-of-uh-60l-b-1b-aircraft

It costs $10.9 million to train a pilot how to fly an F-22 fighter, and $1.1 million to train one to fly a C-17 cargo plane. All the USAF’s costs for training pilots for its other types of planes are in between. Of course, that’s not the end of it. Those are only the costs of getting a new person UP TO the level of being able to fly their plane. Since people forget things, the pilots have to frequently undergo retraining and re-certification, which means more money spent each year (the RAND analysis doesn’t show those figures) as a continual expense. This means the cost savings of inventing computers that can fly warplanes as well as humans will be massive. There will also be no risk of pilots being shot down over enemy territory, captured, and used as political pawns.
https://www.forbes.com/sites/niallmccarthy/2019/04/09/the-cost-of-training-u-s-air-force-fighter-pilots-infographic/

The FAA doesn’t know who was responsible for the mass drone formations that flew over the Great Plains last winter.
https://www.thedrive.com/the-war-zone/34662/faa-documents-offer-unprecedented-look-into-colorado-drone-mystery

Are aliens hibernating until the day the universe gets colder? If they are intelligent machines, then they would generate a lot of heat, and a colder environment would let them radiate that heat more efficiently, allowing them to do more computation. “[If such aliens hibernated until the universe’s temperature dropped from 3 Kelvin to less than 1 Kelvin] they could achieve up to 10^30 times more than if done today.”
https://getpocket.com/explore/item/a-new-theory-on-why-we-haven-t-found-aliens-yet

Turing Award-winner John Hopcroft thinks machines will make human workers obsolete, and he points out that, just because humans have been able to climb up the skills ladder in the past faster than machines could automate old jobs, doesn’t mean we will be able to do that forever. Past trends don’t continue indefinitely, and there’s no reason why we couldn’t get into a situation where machines took over 1 million human jobs in a given year, but only 900,000 new jobs for humans were created during that same period. Hopcroft suggests dealing with this by spreading out the remaining jobs among more humans by finding ways to shorten the amount of time the average person works.
https://youtu.be/htfNuoJ3Ecc

Elon Musk is still scared of AI. He thinks they could get smarter than humans in five years, and that things would get “unstable or weird” shortly after. I think his prediction is way too optimistic, and what might happen in five years is a machine passing the Turing Test, meaning it can carry on conversations with people and answer questions as well as a human. Things will get “weird” after that because many people dealing with such machines will mistakenly assume that they are “intelligent,” and perhaps even smarter than humans (e.g. – you’ll be able to ask a machine to do a complex math problem, and it will give you the solution right away). But the Turing Test machines and the autonomous cars we’ll have by the end of this decade will not actually be intelligent, self-aware, or capable of creative thought. Only at the surface level will they seem so. I doubt a true AI will be built earlier than midcentury.
https://www.businessinsider.com/elon-musk-maureen-dowd-ai-google-deepmind-wargames-2020-7

Musk is one of the world’s richest men, and his business achievements have been extraordinary, but he also has many stalled and failed ventures. Also, Tesla’s high stock price is probably unjustified, and Musk’s claims about future growth and the introduction of fully autonomous car models are likely too optimistic.
https://www.latimes.com/business/story/2020-07-22/why-the-stock-market-is-so-high-and-tesla-even-higher

A coast-to-coast network of fast charging stations that can recharge an electric car battery in 20 minutes has been completed in the U.S.
https://mashable.com/article/electric-vehicle-charging-cross-country/

Intel is falling behind other computer chip manufacturers.
https://www.bbc.com/news/technology-53525710

An experiment shows that sound waves can be used to move tiny objects around inside of bodies.
https://www.pnas.org/content/early/2020/07/09/2011999117

The discovery that some colon cancers are caused by the bacterium F. nucleatum raises the possibility that a vaccine could be created, saving lives.
https://blogs.sciencemag.org/pipeline/archives/2020/07/22/bacteria-and-colon-cancer

A new algorithm can look at cell biopsy images and diagnose prostate cancer with almost perfect accuracy.
https://www.thelancet.com/journals/landig/article/PIIS2589-7500(20)30159-X/abstract

A farm combine can weigh over 20 tons. As the vehicles slow drive over farm fields, their tires compact the soil, damaging its ability to grow more crops. Smaller farm robots wouldn’t do this.
https://phys.org/news/2020-07-big-wheel-ruts-economic-losses.html

Solar panels are really helping Afghanistan’s heroin farmers.
https://www.bbc.com/news/science-environment-53450688

An experimental trimaran generates electricity from the ocean’s waves.
https://www.bbc.com/future/article/20200718-the-revolutionary-electric-boat-powered-by-the-ocean

Flooding has become a worse problem in New Orleans and some other coastal areas because of “land subsidence.” As humans pump aquifer water, oil, and natural gas out of the ground, all the little voids empty out, the dirt compacts, and the ground level sinks. This problem is not connected to global warming, and shows that some flooding is not due to rising sea levels or worsening storms.
https://www.csmonitor.com/Science/2016/0518/How-fast-is-New-Orleans-sinking-Faster-and-faster-says-new-study

The Mediterranean Sea was warmer during the Roman Era than it is today.
https://www.nature.com/articles/s41598-020-67281-2

Humans might have migrated to the Americas from Asia 10,000 years earlier than is widely believed.
https://www.nature.com/articles/s41586-020-2509-0

Genetic studies of black people in the Americas have revealed new information about the slave trade, and about the pervasiveness of white masters raping their female slaves.
https://www.bbc.com/news/world-africa-53527405

Cosmic rays are responsible for the right-handed chirality of DNA. If the rays are omnipresent in the galaxy and have the same energetic properties everywhere, alien DNA should share our chirality.

DNA and RNA are also more structurally suited to their roles storing genetic information than any other type of biomolecule, so it’s likely that all but the most primitive types of aliens will use DNA and RNA.
https://www.dailymail.co.uk/sciencetech/article-8483125/DNA-living-things-right-handed-bias-cosmic-rays-blasting-young-Earth.html

But what if aliens used some completely different type of biomolecule to store their genetic information? Well, then they’d probably be biochemically inefficient compared to us.
https://blogs.sciencemag.org/pipeline/archives/2019/09/18/and-now-for-a-bit-of-quantum-mechanics

Silicon-based, ORGANIC life forms are unlikely to exist.
‘Only a tiny fraction of the theoretical chemical space of silicon chemistry can be stable in water (Section 3.2.1). In fact, some of the commonly held views about the low diversity of silicon chemistry come directly from the instability of silicon chemistry in water. Silicon chemistry in water also requires substantially more energy to access than equivalent carbon chemistry (Section 3.3). For all of the above reasons, we argue in this subsection that silicon is unlikely to be a scaffold element or a common heteroatom element in water.’
https://www.mdpi.com/2075-1729/10/6/84

Infrared cameras can see through some plastics and fabrics that look opaque to the human eye.
https://www.thesun.co.uk/tech/12072610/oneplus-phone-x-ray-camera-clothes-plastic-banned/

Here’s an amazing upscaling of footage of Tokyo street scenes from the 1910s. Even better video reconstructions than this will be available in the future.
https://youtu.be/MQAmZ_kR8S8

In 1969, Richard Nixon’s speechwriters prepared an address for him to read to the nation in case the Apollo 11 moon landing failed. Using deepfake technology, we can see what it would have looked like.
https://youtu.be/LWLadJFI8Pk

In the 1970s, there was an ambitious project to compile a 6 million-page history of America from its founding to WWI into a document called the Library of American Civilization. It would have been in “ultrafiche” format, with each ultrafiche being 3″ x 5″ and containing up to 1,000 page images, shrunk from original size by a factor of 55 to 90. The idea was to distribute the document, along with ultrafiche readers, to every major library in America.
https://files.eric.ed.gov/fulltext/ED082753.pdf

Einstein and Leo Szilard invented three refrigerators.
https://www.youtube.com/watch?v=NpwyU96budw

Donald Trump was right! His prediction that either Bernie Sanders or Joe Biden would be the Democratic nominee for President was correct.
https://www.dailymail.co.uk/news/article-6930369/Trump-predicts-Biden-Sanders-2020-Dem-finalists.html

This prediction from May turned out wrong: ‘Professor Carl Heneghan from the Centre for Evidence-Based Medicine at Oxford University said: “I think by the end of June we’ll be looking at the data and finding it difficult to find people [in Britain] with [COVID-19], if the current trends continue in the deaths.”‘

The daily death toll never reached zero in June–the lowest point was 25 deaths on June 29th. Also, on the last day of the month, 689 Britions were diagnosed with COVID-19.
https://www.thesun.co.uk/news/11693720/coronavirus-study-predicts-date-uk-will-have-no-cases/

This is a smart, new metric: Number of positive results per 1,000 COVID-19 tests. It corrects for the fact that the number of daily tests is growing. That metric, along with the number of excess deaths above the expected baseline, is the most foolproof for understanding the scope and trend of the pandemic.
https://reason.com/2020/07/21/trump-is-wrong-spreading-epidemic-is-responsible-for-most-of-the-rise-in-covid-19-cases/

Bill Gates thinks the U.S. should send all its pre-teens back to school this fall, in spite of the disease risk.
https://www.cnbc.com/2020/07/28/bill-gates-on-back-to-school-during-coronavirus-pandemic.html

Preliminary results from one of the COVID-19 vaccines are good.
https://blogs.sciencemag.org/pipeline/archives/2020/07/20/more-pfizer-phase-i-results-antibodies-viral-mutations-and-t-cells

“Driverless Hotel Rooms”: It must be…THE FUTURE!

Recently, I read an internet article titled “Driverless Hotel Rooms: The End of Uber, Airbnb and Human Landlords.”  In it, the author describes a vacation scenario from the year 2025, in which it is possible to live in luxurious “driverless hotel rooms” that can be stored in “modular skyscrapers.” Once a person goes there, autonomous drone food deliveries and laundry pick-up services can meet their every need. And best of all, through the magic of the “peerism economy,” everything is dirt cheap.

I read the article about three times, and each time, I peeled back another layer of “jargon” and eventually saw that the author’s future scenario was actually conventional in some respects and totally unrealistic in others. Analyzing it was an interesting exercise that actually yielded a few new insights about the future for me. But before I go into that, read the article for yourself:

https://hackernoon.com/driverless-hotel-rooms-the-end-of-uber-airbnb-and-human-landlords-e39f92cf16e1

Now let’s begin…

First, let’s consider the description of the “driverless hotel room” and think about what it really is:

‘[After your plane lands in Sydney and you exit the airport] You giggle, then follow the augmented directions leading to a sleek driverless hotel room. It’s about the size of a mini bus but without the seats, steering wheel and engine. ‘

This futuristic “driverless hotel room” sounds remarkably similar to…a recreational vehicle. Specifically, since it’s described as being the size of a ‘mini bus,’ it sounds like a “B-class” RV. An example is this 2018 Winnebago Travato:

2018 Winnebago Travato RV

It goes on: ‘Inside is everything you’d expected. On the left, a couch seat that folds into a queen-sized bed with the push of a button. To the right, a small kitchenette with electric stove, running water, sink, microwave and bar fridge. Behind that is the detachable bathroom module with toilet, shower and wash basin.’

If the placement of the furniture and appliances is rearranged, that describes a Winnebago Travato:

Winnebago Travato interior layout

The Travato’s bathroom is not ‘detachable,’ but I can’t see how, aside from a small fuel efficiency penalty, that makes it any worse. In fact, the inconvenience of not always having a permanently attached bathroom that you can use without delay would probably make the article’s “driverless hotel room” worse than the 2018 Travato, but we’ll get to the “detachable” stuff in a minute.

For now, let’s stop and think about what the article has discussed so far. The futuristic-sounding “driverless hotel room” is actually just an RV, but with the self-driving capabilities we will surely have in 10 – 20 years. The concept is not exotic, nor does it take any ingenious insight to envision it: driverless cars are talked about in the news every day, and all the author of this article has done is taken the next step to say that RVs will someday have the technology, too. Hence, his use of “driverless hotel rooms” irks me because it makes the idea sound more abstruse than it really is. This sort of thing continues:

‘You look up at a lego-like modular skyscraper reaching high above the moonlit clouds. Your room docks with an electric skate and is elevated thirty stories up before slotting into a window-facing position.’

Translation: Your self-driving RV takes you to a multi-story parking garage and parks itself in one of the upper levels. Glimpse the future!

Anyway, the story continues. Since this is only the year 2025, you’re not a real Posthuman yet, so your feeble human body still has to ingest biomatter to survive.

‘”Hi there, welcome home. Hungry?”
“I could go some pad thai and a beer thanks”, you respond.
“That’ll be here in 6 minutes.”
…Exactly 6 minutes later, a drone lands on the roof and lowers your order through a compartment in the ceiling. If you need to order any package you simply ask the room and a drone arrives; it even does laundry!’

Translation: Amazon quadcopter drones will transport small amounts of stuff to and from your temporary residence. While I’m sure that automated delivery of light cargo to your doorstep will be even faster, cheaper and more common in 2025 than now, I think we’ll be using self-driving cars for it, with small vehicles handling local deliveries of light loads like dinner and your laundry. Again, this is nothing exotic: we’d just have to replace pizza delivery guys with autonomous vehicles, and in one step, we’d be there. By describing this delivery service as being done by autonomous quadcopters instead of autonomous cars, the author again makes something conventional sound exotic.

However, this brings up an interesting side thought: If mobile delivery gets cheap enough thanks to autonomous vehicles (no wages for human drivers), then it might make financial sense for people to buy smaller and hence cheaper houses that lacked laundry rooms and kitchens, and to instead have their laundering and cooking needs handled by outside vendors. It’s already common for people in apartment buildings to not have private laundry machines, and they get by fine, so I think widespread use of automated laundry services is possible. However, I think its far less likely people will delete their kitchens (unless we’re discussing a distant future scenario where no one eats food since they’re Posthumans or robots) as it would actually be inconvenient to get every one of your meals delivered (faster and cheaper. Kitchens might get smaller, and only having a kitchenette will get more common, but people will not totally forsake their ability to refrigerate and cook food for themselves anytime soon. 

‘One of the side panels opens smoothly to reveal a large adjoining living room module.

Extra modules are optional and can be requested ondemand: an extra bed, private gym, spa, snackbar, office and more. On various levels of the tower are cafes, restaurants, retail stores, entertainment areas, communal kitchens, laundromats, a gym and even a cinema.’

So far, this is the only truly original aspect of the hypothetical experience. It sounds like the author is saying that smaller, single-purpose autonomous RVs will, at your request, pull up next to your primary RV so that their sliding cargo doors align. Both of the doors will open, letting you step from one vehicle to another as if you were crossing a door threshold (would something like an accordion canopy extend around the two doors to keep out the cold air and bugs?). The idea of being able to customize a vacation home based on your needs is interesting, but why would this “modular” solution be cheaper or less of a hassle than renting a single RV that already had exactly what you needed inside? RVs already vary considerably in overall size, layout and features, so if you were on a working vacation, wouldn’t you just order an RV in the beginning that had an office desk and equipment? And why would you want to order a detachable private gym module when the scenario says the parking garage–er, lego-like modular skyscraper–has a built-in gym you can use?

In considering the value of this concept, let’s not make the mistake of giving it bonus points simply because it includes a bunch of technology. Instead, let’s ask a more essential question: How is this “future working vacation scenario” any better than a much lower-key scenario where you take a taxi to a normal hotel, and then pick among rooms of different sizes and luxury levels according to your needs and budget? Won’t the normal hotel also have all the same stuff–gyms, spas, snackbars, office space, cafes, restaurants, etc.–either inside of it or within walking distance of it? In touristy places and cities like Sydney, this is almost always the case. I don’t see how staying in the high-tech RV would be more pleasant or useful.  

‘Luxury living at $30 per night.’

The author never explains why the price would be so low. On RVshare.com, I found an ad for a 2018 Travato rental, and it was $245 per night! Older, more beaten-up RVs in the same size range didn’t go for less than $139. The glorified parking garage would also surely charge RVs parked there a daily fee, just like today’s run-of-the-mill RV campgrounds, raising the overall cost even more. I don’t see how better technology or some kind of “peer economy” innovation could lower the cost point to anywhere near $30. The RVs themselves would still have to charge money for fuel, cleaning and sterilization services, insurance (even machines will get into accidents, and every 1,000th human tenant will somehow manage to burn the RV down), and taxes. I assure you that local and state governments will DEFINITELY cash in on this type of business if it ever gets common.  

The parking garage might have low overhead if it uses robots instead of expensive human workers, but that still doesn’t get us to the $30 price point. Also, note that normal hotel buildings could also take advantage of the same automation technology to get rid of their human staff, which would keep them price-competitive with the autonomous RV/parking garage hotel setup. I’m not convinced the latter would be any cheaper than renting a nice hotel room that came with an office desk and chair. 

‘Your six week experience will be personalized to your precise ondemand preferences including invites to local communities, events and interest networks.’

This is much more plausible, and might be the one aspect of this hypothetical future vacation scenario that yields the clearest benefit. It stands to reason that as AIs gain better understandings of individual human tastes, they’ll be able to design vacation itineraries tailored to each person. This would benefit humans by saving them time doing vacation planning, and it would save them time and money during the vacations by steering them clear of attractions they probably won’t like. 

Also, the article makes me realize that self-driving technology will have some real benefits for the RV industry and for the hobby’s popularity since it will eliminate the worst part of the travel experience–hours of highway driving. If people could spend that time doing something relaxing like watching videos or talking with their family members, the lifestyle would get more attractive, and most importantly, people would have more fun. Deleting the steering wheel, console and dashboard would also free up space that could be used for something else. 

With the description of the vehicle and the user experience done, the author moves on to explaining how the autonomous RV/hotel garage paradigm will arise by 2025. 

‘The image above is a screenshot of the thousands of new, unsold cars sitting at a dock in a town named Sheerness in the United Kingdom. This is one of hundreds of locations where new cars sit empty and unused. And while auto manufacturers typically keep a 60 day supply, US manufacturers hit a record high of over 4 million unsold vehicles in their inventory in 2016.

The issue of overproduction is a common crisis in Capitalism where more goods are produced than there are customers to consume them.’

This is a misdiagnosis of the problem: Car sales are cyclic, meaning sales spike during good economic times, then taper off as everyone who wants a new car gets one, and then get still lower during bad economic times. A textbook example of this cycle played out over the last 12 years, as car sales cratered during the Great Recession because so many people were unemployed, had their pay cut, or became temporarily cautious about spending money on luxuries.  As the recovery hit its stride, the pent-up demand for new vehicles was unleashed, and car sales spiked.

By 2016, most of the Americans who wanted to buy new cars had bought them, and sales dropped. Yes, car companies overestimated demand, leading to a temporary glut of unsold cars at the time the article was written (2017), but sales projections are seldom perfect, and the inventory was eventually sold off.  Photos of huge parking lots full of unsold, new cars might make good fodder for doomsday articles about the economy, but in context, they mean little. This wasn’t a serious problem or a “crisis in Capitalism.”

‘However if ondemand driverless vehicles come to fruition then your $10 Uber ride suddenly becomes a sub-$1 ride anywhere in the city.’

Again, the author provides no justification for such a massive price drop. Yes, Uber rides will get cheaper once the cars drive themselves and you don’t have to pay human drivers, but fuel costs, maintenance costs, and depreciation will not change. And even if autonomous cars are safer than human drivers, they won’t be perfectly safe, so there will always be some car insurance cost. Messes and damages caused by human passengers will need to be routinely cleaned, and that will also cost money. 

Based on the actual cost breakdowns of Uber and regular taxi cab fares, “ondemand driverless vehicles” should be about 50% cheaper, not 90%.

Uber fare breakdown

Taxi fare breakdown

‘At that point the appeal of owning a car will diminish for most of the population, thus creating a massive oversupply of unwanted human-driven vehicles.’

This is another fake problem. In reality, the transition to autonomous cars will take over 30 years, during which time the fraction of the vehicle fleet that is autonomous will grow while the fraction that is human-driven will shrink. Since cars typically last 10-15 years until they’re totaled (by a road accident, other accident like flood or vandalism, or by a mechanical problem that is too expensive to fix), obsolete, human-driven cars will steadily attrit out of the fleet during that long transition period, so there will be no “massive oversupply of human-driven vehicles.” Any excess of human-driven vehicles that builds up in rich countries like the U.S. could also be dealt with by exporting them to poorer countries where they’re still in demand. The international secondhand clothing trade is an instructive example of what will happen.

‘Given the forecasts of 2 billion vehicles on the roads by 2040, and considering driverless vehicles need only be idle while recharging, we can roughly calculate that only 100 million ondemand driverless vehicles will be required to replace all 2 billion human-driven vehicles.’

This is another prediction of a massive (95%) reduction in something that the author inadequately explains, and that is probably wrong. But I’ll bet the author’s reasoning is this:

1) There will be 2 billion vehicles in the year 2040.

2) The typical vehicle is idle 95% of the time, meaning it is parked in a driveway 95% of the time and is only being driven 5% of the time.

3) Therefore, doing some simple multiplication, I calculate that if everyone shared vehicles and used them in “shifts,” we could cut the number of vehicles by 95%, and 100 million autonomous taxis could provide the same level of mobility as 2 billion privately owned cars! You can check my math!

It seems simple, but is fatally flawed by the fact that demand for cars isn’t evenly spread out over each 24 hour day: there are peaks in the mornings and evenings when 50% of the population is moving to or from work or school, all at once. Unless you want to paralyze your economy and put your population into a state of daily aggravation, you won’t allow your country’s vehicle fleet to shrink below whatever level is needed to satisfy that peak daily demand. I guarantee a 95% reduction to the U.S. vehicle fleet would cause massive, daily disruption, even if the vehicles routed themselves with maximum efficiency.

That said, I can imagine a significant shrinkage of the global vehicle fleet happening thanks to greater use of telework. If people don’t have to drive to work each day, then there is obviously less need for them to own cars. In the more distant future, if machines render human workers obsolete, then the need would decline further. And in the REALLY distant future, when we’re all brains floating in jars connected to The Matrix, no one will need to physical travel anywhere for anything. You’ll just use virtual reality to indulge in whatever experience or vacation you want, without leaving your jar.