Month: October 2017

I thought the movie Prometheus was awful, and rather than waste my time ranting about all the things I hated, I’ll just say I agree with the critics who collectively bashed the confused and scientifically flawed storyline, shallow and unlikable characters, and inexplicable/unrealistically stupid behavior of the characters. I love the first three Alien films, but everything since has been disastrous. Enough said.

Instead of spending any time writing about the flawed plot (IMDB has a summary here: http://www.imdb.com/title/tt1446714/synopsis) , I’ll jump straight to an analysis of the vision of the future depicted in the film, which is set in 2093.

We will have proof that humans evolved from or were engineered by aliens. Prometheus is premised on the notion that ancient aliens seeded the Earth with life and repeatedly returned to direct the genetic and cultural evolution of humans. The theory that intelligent aliens influenced the rise of the human species is debunked by the fossil record, by comparative DNA analyses of humans and other hominids, and by human biochemistry. Together they prove we are indigenous to Earth and that we slowly evolved from simpler species. By 2093, we will not have “new evidence” that contradicts this story of our origins, though there will probably still be many uneducated and/or mentally ill people who believe in this and other conspiracy theories. It is at least slightly plausible that life began on Earth billions of years ago thanks to panspermia (i.e. – an asteroid containing simple organic matter fell to Earth), but I don’t see how we could ever prove the hypothesis since time has destroyed any evidence that may have existed.

Some robots will be indistinguishable from humans. One of the main characters is “David,” an artificially intelligent robot who looks and acts like a human. Since David is modeled after humans, he is a special type of robot called an “android,” and note the literal translation of the word from Greek is “man-like” (andro-oid). I think androids like David will exist by 2093, and they will be capable of an impressive range of behaviors and functions that will make them seem very human-like. In fact, they’ll be so refined that we might not be able to tell them apart from humans at all, or only be able to do so on rare occasions (ex – some of their responses to questions might not make sense). Whether they will be truly conscious and creative like humans is a different matter.

The hyper-realistic sculptures made by artists like Ron Mueck, and advanced animatronics like the Garner Holt Productions Abraham Lincoln convince me that we could build robot bodies today that look 95% the same as real humans. Eeking out that last 5% to cross the Uncanny Valley should be easy to accomplish long before 2093. The much harder part is going to be endowing the machines with intelligence, with the ability to walk and stay balanced on two feet, and with other forms of physical deftness and coordination that will allow them to safely and efficiently work alongside humans and to do so without appearing “mechanical” in their movements.

Machines will do surgery on people, unassisted. There’s a gruesome and silly scene in Prometheus where the female main character realizes she is pregnant with a rapidly growing alien-human hybrid. She runs into the space ship’s infirmary, lies down in a coffin-sized surgery pod, and orders the machine to surgically remove the fetus. Several robotic arms bearing laser scalpels and claws do it in about a minute. I think surgery will be completely automated by 2093, along with all or almost all other types of jobs. Replacing high-paid human doctors with robot doctors that work for free will make healthcare dramatically cheaper and easier to access (with positive effects on human life expectancy and quality of life), though mass unemployment will also reduce the amount of money people have to pay for things like healthcare.

There will be space ships that can travel faster than the speed of light. The Prometheus space ship is capable of faster than light space travel, and the movie’s events take place in a different star system. Our current understanding of physics informs us that there is no way to exceed the speed of light, and propelling something as big as the Prometheus to just 10% of that speed would require impractically large amounts of energy. While mass figures for the fictional ship are unavailable, let’s assume it weighed about as much as the Space Shuttle, which was 2,000,000 kg. This kinetic energy calculator indicates it would require 9 x 10^20 Joules of energy to accelerate it to 10% of the light speed (30,000,000 meters/second).  That’s as much energy as the entire United States generates in nine years.

While science is by nature always open to revision, I think it’s a bad idea to base one’s vision of the future on assumptions that well-tested pillars of science like the Theory of Relativity will just go away. That said, I don’t think faster than light space travel is likely to exist in 2093–or perhaps ever–so we’ll still be confined to our solar system then.

FWIW, the space ships flying around our solar system by that year will be considerably larger and more advanced than what we have now, and it’s likely that space ships of similar size and technology (sans light speed drives) as the Prometheus will be plying interplanetary space.

There will be instantaneous gene-sequencing machines. In Prometheus, the humans find a severed alien head inside a wrecked alien structure, and they bring it back to their space ship for examination. The alien belongs to an advanced species nicknamed “The Engineers,” and the head’s features are very human-like. As part of the examination, the humans take a DNA sample from the head and put it in a gene sequencing machine, which determines it shares 99% of its genome with humans. The cost of sequencing a full human genome has plummeted at a rate exceeding Moore’s Law, and well before 2093, the service will become trivially cheap (e.g. – the same price as routine blood tests or vaccinations) and will take a few hours.

FYI, today it costs less than $5,000 to sequence a human genome, and the machines can do the work in about 24 hours. But since we can only decipher a minuscule fraction of the genetic information, it’s still not worth it for healthy people to get their genomes sequenced. Within 20 years, the price will get low enough and the medical utility will get high enough to change that.

Paper-thin, ultra-high-res display screens will be in common use. Computer monitors and TV’s with these qualities are shown throughout the film. Many of them are also integrated into translucent glass, so clear windows can also serve as touchscreens. This will be a very old, mature technology by 2093.

Wall-sized display monitors will be common. Early in Prometheus, there’s a scene where David is watching a film on a TV screen that covers an entire wall of a room in the space ship. This should be very old technology by 2093, and given current trends, floor-to-ceiling TVs will become available to average-income Americans in the 2030s. Since standard-sized doorways are too small to fit enormous TVs through them, the TVs will also need to be paper-thin and rollable into tubes, or capable of being assembled from a grid of many smaller pieces.

Suspended animation pods will exist. During the multi-year space journey from Earth to the alien planet where the film’s events happen, the human crew members are kept in a state of suspended animation in coffin-sized pods. The mechanism through which their physiological functions are suspended (i.e. – Deep cold? Preservative fluids injected into their bodies? Something else?) is never made clear, but one crew member is shown to be dreaming in her pod, indicating that her brain is still active, and by necessity, her metabolism (even if it is dramatically slowed). That being the case, the “hypersleep” depicted in Prometheus is fundamentally different from today’s human preservation methods, which involve freezing dead people whose biochemical and brain activity have ceased in liquid nitrogen.

Frankly, I can’t say whether suspended animation will exist in 2093 because there isn’t any trendline for the technology like Moore’s Law that I can put on a graph and extrapolate. The best I can do is to note that our ability to preserve human organs meant for transplantation is improving as time passes, we do not appear to be close to the limit of what is scientifically possible, credible scientists have proposed ways to improve the relevant technologies, and whole-body human cryopreservation and revival is theoretically possible.

Machines will be able to read human thoughts and create digital representations of those thoughts that other people can watch. At the start of the movie, the Prometheus is still en route to the alien planet, all of the humans are in cryosleep pods, and David the android is the only crew member awake. During the montage that shows how he spends his time as the ship’s custodian, he takes a moment to check on the status of a female member of the crew. David puts a virtual reality visioning device on his face, and through it he is able to see a dream that the person is having at that moment, as if he were watching live-action film footage. I think this technology will exist by 2093, but its capabilities will be more limited than shown in the film.

Human thought is not a magical phenomenon; it happens thanks to biochemical and bioelectric events happening inside of our brains. Currently, we don’t understand the linkages between specific patterns of brain activity and specific thoughts, and our technologies for monitoring brain activity are coarse, but there’s no reason to assume both won’t improve until we have machines that can decipher thoughts from brain activity. To quote Microsoft Co-Founder Paul Allen, “An adult brain is a finite thing, so its basic workings can ultimately be known through sustained human effort.”

Unlike faster than light space travel, mind reading machines don’t violate any laws of physics, nor is there reason to believe the machines would require impractically large amounts of energy. In fact, crude versions of the technology have already been built in labs using fMRI machines and brain implants. In all cases, the machines first recorded the participants’ brain activity during training sessions where the humans were made to do scripted physical or mental tasks. The machines learned which patterns of brain activity correlated with which human thoughts or physical actions, enabling them to do things like decipher simple sentences the humans were thinking of with high accuracy. In other lab experiments of this nature, physically disabled people were able to command robot arms to move around and grab things by thought alone.

However, I think the accuracy of mind reading machines will be hampered by the fundamentally messy, plastic nature of the human mind. Scientists commonly refer to the human brain as an example of “wetware” due to its fusion of its hardware and software, and to its ever-shifting network of internal connections. As a result, if I close my eyes and try to envision an apple, there will be a discrete pattern of brain activity. If I do this again in a few minutes, the activity pattern will be slightly different. Contrast this with a computer, where the image of an apple exists as a discrete software file that never changes. Because of this, even if a brain scanning machine had perfect, real-time information about all brain activity, its interpretation of what the activity meant would always have some margin of error.

Returning to the movie’s specific depiction of mind reading technology, let me add that if we could see the same mental images that a person sees while dreaming, I doubt they would look sharp or well-detailed, or that the sequence of events would follow a logical order for more than a few seconds before the dream transformed into something different. It would be like watching a fuzzy, low-resolution art film comprised of disjointed images and sounds, occasionally peaking in intensity and coherence enough for you to discern something of meaning, before dissolving into the equivalent of human brain “static.” So while it’s plausible that, in 2093, you could use machines to read someone else’s thoughts, I think the output you would see would be much less accurate and less detailed than it was in Prometheus.

There will be small, flying drones that can do many things autonomously, like mapping places and finding organic life. After landing on the alien planet, the crew of the Prometheus travels overland to a mysterious alien structure and goes inside. The interior is a long series of dark, twisting corridors and strange rooms. To speed up their exploration, one crewman releases two volleyball-sized flying drones, which zip down the corridors while beaming red, contorting lasers at everything. As they float along, the drones transmit live data back to the Prometheus that is compiled to build a 3D volumetric map of the alien structure’s interior spaces.

Simpler examples of this technology already exist and are used for mapping, farming and forestry (one of many commercial examples is “Drone Deploy” https://youtu.be/SATijfXnshg; another is “Elios,” which is enmeshed in a spherical cage as protection against collisions in tight spaces). Sensor miniaturization, better motors and batteries, better AI, and cost reductions to every type of technology will allow us to build scanning drones that are almost identical to those in the movie decades before 2093. The only parts of the movie’s depiction I disagree with are 1) the use of red lasers for sensing (passive sensors and LIDAR beams that are invisible to human eyes are likelier) and 2) the use of some type of magical antigravity technology to fly (recognizable means of propulsion like spinning rotors and directed jets of exhaust will probably still be in use, though they will be smaller but more powerful thanks to improved technology). Small, cheap, highly versatile flying drones will have enormous implications for mass surveillance, espionage, environmental monitoring, and warfare.

There will be 3D volumetric displays. The bridge of the Prometheus has a large table that can project detailed, 3D volumetric images above it. The crew uses it to view an architectural diagram of the alien structure they find on the planet.  Crude versions of this technology already exist, and can make simple images that float in midair by focusing laser beams on discrete points in space called “voxels” (volumetric pixels) heating them to such high temperatures that they turn the air into glowing plasma. If enough voxels are simultaneously illuminated, 3D objects can be constructed in the same way that pixels on a digital watch face can arrange into numbers if lit up in the right sequence.

Today’s volumetric displays produce ozone gas and excessive noise thanks to air ionization, but it’s plausible the problems could be solved or at least greatly reduced by 2093. For certain applications, the displays would be very useful, though I think holographic displays (i.e. – a flat screen TV doesn’t make voxels but uses other techniques to fool your eye into thinking its images are popping out of the screen) and virtual reality glasses will fulfill the same niche, possibly at lower cost. Intelligent machines might also be so advanced that they won’t need to look at volumetric displays to grasp spatial relationships as humans have to.

Some disabled people and old people will use powered exoskeletons instead of wheelchairs.  The space mission depicted in the film is funded by an elderly tech tycoon named “Peter Weyland.” Unbeknownst to most of the crew, he secretly embarked with them from Earth, and is sleeping in a suspended animation pod in a locked room while the first 3/4 of the film’s events unfold. At that point, David awakens him, and it is revealed to the surviving crewmen that Weyland supported the mission in the hopes that the aliens would give him a cure for his own mortality. They get into their space suits for a final trip to the alien structure, and Weyland’s outfit includes a light, powered exoskeleton for his lower body, which allows him to walk much faster than he normally could given his age.

Exoskeletons for the disabled and the elderly already exist, a recent example being the “Phoenix” unit made by the “suitX” company. Unfortunately, Phoenix is $40,000 (a typical electric wheelchair is only $2,000) and requires a somewhat heavy battery backpack. I suspect that Phoenix’ high cost is due to patents and R&D costs being amortized over a small production run,  and that the physical materials the suits are made of are not expensive or exotic. Prices for Phoenix-like exoskeletons will only decline as relevant patents expire, copycats arise, and batteries get lighter and cheaper. It’s hard to see how these kinds of exoskeletons won’t be ubiquitous among mobility-impaired people by 2093 (as electric wheelchairs are today), if not decades before.

That being said, I don’t think they’ll make electric wheelchairs completely obsolete because some disabled and old people will find it too physically taxing to stand upright, even if supported by a prosthesis. Some users might also find it too time-consuming to put on and take off exoskeletons each day (note the large number of straps in the photo below).

There will be lots of 100+ year old people. Piggybacking off the last point, Mr. Weyland is 103 years old, though since he spent the space journey in suspended animation, his aging process was probably slowed down, making his “biological age” slightly lower than his chronological age. Though living 100 years has a kind of mythic aura, it’s actually only a little higher than the current life expectancy in rich countries, and, making conservative assumptions about future improvements to healthcare, living to 100 will probably be common in 2093 (doing the math, you could someday be in this group).

Today, a wealthy white male who is diligent about his diet and exercise (as Weyland probably had been throughout his life) can expect to live to about 90. In fact, that’s a low estimate since it assumes the state of medical technology will stay fixed at 2017 levels for his entire life. In reality, we’re certain to develop new medicines, prostheses, and therapies that extend lifespan farther between now and 2093. A 10 year bump to average life expectancy in the next 76 years–which would put Weyland over the century mark–is entirely possible, and note that U.S. life expectancy actually grew more than that in the 76 years preceding 2017, so there’s recent historical precedent for lifespan increases of this magnitude.

In 2093, “100 will be the new 80,” and indefinite extensions to human lifespan might even be on the horizon.

What was missing from the movie’s depiction of 2093:

• The fusion of man and machine. Where were the Google glasses? Google contact lenses? Google eye implants? Google brain implants? Go-Go Gadget Legs? (Bionic limbs) By 2093, it will be common for humans to have wearable and body-implanted advanced technologies.
• Not enough automation and robots on the space ship. Computers and machines will doing way more of the work, reducing the need for resource-hogging humans.

Links

1. https://www.nytimes.com/2015/05/15/health/new-way-to-ensure-accuracy-of-dna-tests-us-announces.html
2. Holovect volumetric display: https://youtu.be/kPW7ffUr81g
3. Fairy Light volumetric display: https://youtu.be/AoWi10YVmfE
4. https://www.digitaltrends.com/cool-tech/ai-predicts-what-youre-thinking/
5. http://www.cnn.com/2017/03/01/health/freezing-organ-donation-nanoparticle-warming-study/index.html
6. https://www.technologyreview.com/s/546276/this-40000-robotic-exoskeleton-lets-the-paralyzed-walk/
7. http://www.cnn.com/2016/01/25/health/centenarians-increase/index.html