As unpopular as opinion this is, I really think AI could reach human level intelligence in our life time. The human brain is nothing but a computer, so it has to be reproducible. Even if we don’t exactly figure out how are brains work we might be able to create something better.
Comment on [deleted]
lengau@midwest.social 2 months agoGive it a few billion years.
thedeadwalking4242@lemmy.world 2 months ago
dustyData@lemmy.world 2 months ago
The human brain is not a computer. It was a fun simile to make in the 80s when computers rose in popularity. It stuck in popular culture, but time and time again neuroscientists and psychologists have found that it is a poor metaphor. The more we know about the brain the less it looks like a computer. Pattern recognition is barely a tiny fraction of what the human brain does, not even the most important function, and computers suck at it. No computer is anywhere close to do what a human brain can do in many different ways.
barsoap@lemm.ee 2 months ago
It stuck in popular culture, but time and time again neuroscientists and psychologists have found that it is a poor metaphor.
Notably, neither of those two disciplines are computer science. Silicon computers are Turing complete. They can (given enough time and scratch space) compute everything that’s computable. The brain cannot be more powerful than that you’d break causality itself: God can’t add 1 and 1 and get 3, and neither can god sort a list in less than O(n log n) time. Both being Turing complete also means that they can emulate each other.
Architecturally, sure, there’s massive difference in hardware. Not carbon vs. silicon but because our brains are nowhere close to being von Neumann machines. That doesn’t change anything about brains being computers, though.
There’s, big picture, two obstacles to AGI: First, figuring out how the brain does what it does and we know that current AI approaches aren’t sufficient,secondly, once understanding that, to create hardware that is even just a fraction as fast and efficient at executing erm itself as the brain is.
Neither of those two involve the question “is it even possible”. Of course it is. It’s quantum computing you should rather be sceptical about, it’s still up in the air whether asymptotic speedups to classical hardware are even physically possible (quantum states might get more fuzzy the more data you throw into a qbit, the universe might have a computational upper limit per unit volume or such).
dustyData@lemmy.world 2 months ago
Notably, computer science is not neurology. Neither is equipped to meddle in the other’s field. If brains were just very fast and powerful computers, then neuroscientist should be able to work with computers and engineers on brains. But they are not equivalent. Consciousness, intelligence, memory, world modeling, motor control and input consolidation are way more complex than just faster computing. And Turing completeness is irrelevant. The brain is not a Turing machine. It does not process tokens one at a time. Turing completeness is a technology term, it shares with Turing machines the name alone, as Turing’s philosophical argument was not meant to be a test or guarantee of anything. Complete misuse of the concept.
bigpEE@lemmy.world 2 months ago
Re: quantum computing, we know quantum advantage is real both for certain classes of problems, e.g. theoretically using Grover’s, and experimentally for toy problems like bosonic sampling. It’s looking like we’re past last he threshold where we can do error correction, so now it’s a question of scaling. I’ve never heard anyone discuss a limit on computation per volume as applying to QC. We’re down to engineering problems, not physics, same as your brain vs computer case.
Akrenion@slrpnk.net 2 months ago
Some Scientists are connectiong i/o on brain tissue. These experiments show stunning learning capabilities but their ethics are rightly questioned.
Cethin@lemmy.zip 2 months ago
I don’t get how the ethics of that are questionable. It’s not like they’re taking brains out of people and using them. It’s just cells that are not the same as a human brain. It’s like taking skin cells and using those for something. The brain is not just random neurons. It isn’t something special and magical.
dustyData@lemmy.world 2 months ago
Reading about those studies is pretty interesting. Usually the neurons do most of the heavy lifting, adapting to the I/O chip input and output. It’s almost an admittance that we don’t yet fully understand what we are dealing with, when we try to interface with our rudimentary tech.
fckreddit@lemmy.ml 2 months ago
The only way AI is going reach human-level intelligence is if we can actually figure out what happens to information in our brains. No one can really tell if and when that is going to happen.
thedeadwalking4242@lemmy.world 2 months ago
Not necessarily, human made intelligence may use separate methods. The human brain is messy it’s possible more can be done with less.
Lyrl@lemm.ee 2 months ago
Maybe more with less is possible, but we are currently doing less variety of skill with way, way more energy. From humanbrainproject.eu/…/learning-brain-make-ai-mor…
It is estimated that a human brain uses roughly 20 Watts to work – that is equivalent to the energy consumption of your computer monitor alone, in sleep mode. On this shoe-string budget, 80–100 billion neurons are capable of performing trillions of operations that would require the power of a small hydroelectric plant if they were done artificially.
Tlaloc_Temporal@lemmy.ca 2 months ago
I somewhat agree. Given enough time we can make a machine that does anything a human can do, but some things will take longer than others.
It really depends on what you call human intelligence. Lots of animals have various behaviors that might be called intelligent, like insane target tracking, adaptive pattern recognition, kinematic pathing, and value judgments. These are all things that AI aren’t close to doing yet, but that could change quickly.
There are perhaps other things that we take for granted than might end up being quite difficult and necessary, like having two working brains at once, coherent recursive thoughts, massively parallel processing, or something else we don’t even know about yet.
I’d give it a 50-50 chance for singularity this century, if development isn’t stopped for some reason.
Belgdore@lemm.ee 2 months ago
What does “better” mean in that context?
driving_crooner@lemmy.eco.br 2 months ago
Dankest memes
WorldsDumbestMan@lemmy.today 2 months ago
We would have to direct it in specific directions that we don’t understand. Think what a freak accident we REALLY are!
RedBauble@sh.itjust.works 2 months ago
Straight out from Pantheon. Actually a part of the plot of the show
zephorah@lemm.ee 2 months ago
I strongly encourage you to at least scratch the surface on human memory data.
chuckleslord@lemmy.world 2 months ago
Realistic timeline
ByteJunk@lemmy.world 2 months ago
Management would like to push up this timeline. Can you deliver by end of week?
superkret@feddit.org 2 months ago
My wife did not react kindly to that request when she was pregnant.