First sigmoid was transformers allow us to rapidly scale to our already abundant data until we tapped it out, the second is/was reasoning, allowing us to scale to our available compute (and compute manufacturing capacity). Correct me if I'm wrong but we don't have candidate for the third sigmoid, and scaling inference is hitting real-world supply chain constraints - electricity and chips.

Short of a third sigmoid appearing in the ML CompSci space, perhaps in the form of ongoing, repeated step-optimisations which will also have diminishing returns, intelligence growth is now limited a few scaling problems that have already been worked on for a very long time.

Transistors, which have been doubling for almost a century now, but Moores Law has already plateaued and reached limits on energy efficiency, and simply building new fabs is not something that we can do exponentially. And the other growth limiter is electricity - there is no exponential supply of fossil fuels or power plants. Although manufacturing has scaled, PV tech improvements are also plateauing - and while storage is getting cheaper, it's still not economical vs fossil fuels (meaning: when we have to switch to it, the growth slows down further) and we are unlikely to see battery efficiency sigmoid enough to maintain the AI sigmoid.

I don't mean to be bearish here. There's so much money sloshing around that we can afford to put the smartest people, using unlimited tokens, on the task of finding small, incremental gains on the CompSci side of things that will have large monetary payoffs - hopefully allowing further scaling and increased emergent abilities of LLMs. Maybe we can squeeze the algos for quite a while. But I don't see that maintaining the same level of exponential as unlocking unlimited data or maxxing out the world's energy/fab capacity for long.

And I don't see why this is a massive issue except for the people who want to have some god-like super AI? Frontier LLMs are genuinely magic. Not "won't delete your production database" magic, but definitely a massive productivity gain for competent knowledge workers.