AI content for specialists
There is a lot of AI content recently, and it is sometimes of the kind that requires specialized technical knowledge, which I (an ordinary software developer) do not have. Similarly, articles on decision theories are often written in a way that assumes a lot of background knowledge that I don't have. As a result there are many articles I don't even click at, and if I accidentally do, I just sigh and close them.
This is not necessarily a bad thing. As something develops, inferential distances increase. So maybe, as a community we are developing a new science, and I simply cannot keep up with it. -- Or maybe it is all crackpottery; I wouldn't know. (Would you? Are some of us upvoting content they are not sure about, just because they assume that it must be important? This could go horribly wrong.) Which is a bit of a problem for me, because now I can no longer recommend Less Wrong in good faith as a source of rational thinking. Not because I see obviously wrong things, but because there are many things where I have no idea whether they are right or wrong.
We had some AI content and decision theory here since the beginning. But those articles written back then by Eliezer were quite easy to understand, at least for me. For example, "How An Algorithm Feels From Inside" doesn't require anything beyond high-school knowledge. Compare it to "Hypothesis: gradient descent prefers general circuits". Probably something important, but I simply do not understand it.
Just like historically MIRI and CFAR split into two organizations, maybe Less Wrong should too.
Feeling of losing momentum
I miss the feeling that something important is happening right now (and I can be a part of it). Perhaps it was just an illusion, but at the first years of Less Wrong it felt like we were doing something important -- building the rationalist community, inventing the art of everyday rationality, with the perspective to raise the general sanity waterline.
It seems to me that we gave up on the sanity waterline first. The AI is near, we need to focus on the people who will make a difference (whom we could recruit for an AI research), there is no time to care about the general population.
Although recently, this baton was taken over by the Rational Animations team!
Is the rationalist community still growing? Offline, I guess it depends on the country. In Bratislava, where I live, it seems that ~ no one cares about rationality. Or effective altruism. Or Astral Codex Ten. Having five people at a meetup is a big success. Nearby Vienna is doing better, but it is merely climbing back to pre-COVID levels, not growing. Perhaps it is better at some other parts of the world.
Online, new people are still coming. Good.
Also, big thanks to all people who keep this website running.
But still it no longer feels to me anymore like I am here to change the world. It is just another form of procrastination, albeit a very pleasant one. (Maybe because I do not understand the latest AI and decision theory articles; maybe all the exciting things are there.)
Etc.
Some dialogs were interesting, but most are meh.
My greatest personal pet peeve was solved: people no longer talk uncritically about Buddhism and meditation. (Instead of talking more critically they just stopped talking about it at all. Works for me, although I hoped for some rational conclusion.)
It is difficult for me to disentangle what happens in the rationalist community from what happens in my personal life. Since I have kids, I have less free time. If I had more free time, I would probably be recruiting for the local rationality (+adjacent) community, spend more time with other rationalists, maybe even write some articles... so it is possible that my overall impression would be quite different.
(Probably forgot something; I may add some points later.)
Size/capacity isn't all, but In terms of the capacity which actually matters (synaptic count, and upper cortical neuron count) - from what I recall elephants are at great ape cortical capacity, not human capacity. A few specific species of whales may be at or above human cortical neuron capacity but synaptic density was still somewhat unresolved last I looked.
Human language/culture is more the cause of our brain expansion, not just the consequence. The human brain is impressive because of its relative size and oversized cost to the human body. Elephants/whales are huge and their brains are much smaller and cheaper comparatively. Our brains grew 3x too large/expensive because it was valuable to do so. Evolution didn't suddenly discover some new brain architecture or trick (it already had that long ago). Instead there were a number of simultaneous whole body coadapations required for larger brains and linguistic technoculture to take off: opposable thumbs, expressive vocal cords, externalized fermentation (gut is as energetically expensive as brain tissue - something had to go), and yes larger brains, etc.
Language enabled a metasystems transition similar to the origin of multicelluar life. Tribes formed as new organisms by linking brains through language/culture. This is not entirely unprecedented - insects are also social organisms of course, but their tiny brains aren't large enough for interesting world models. The resulting new human social organisms had inter generational memory that grew nearly unbounded with time and creative search capacity that scaled with tribe size.
You can separate intelligence into world model knowledge (crystal intelligence) and search/planning/creativity (fluid intelligence). Humans are absolutely not special in our fluid intelligence - it is just what you'd expect for a large primate brain. Humans raised completely without language are not especially more intelligent than animals. All of our intellectual super powers are cultural. Just as each cell can store the DNA knowledge of the entire organism, each human mind 'cell' can store a compressed version of much of human knowledge and gains the benefits thereof.
The cultural metasystems transition which is solely completely responsible for our intellectual capability is a one time qualitative shift that will never reoccur. AI will not undergo the same transition, that isn't how these work. The main advantage of digital minds is just speed, and to a lesser extent, copying.