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Likely we are because the actualized end result already exists: the human brain.

The fact that human intelligence exists means that the idea of human level intelligence is not a pipe dream.

The question is whether or not the basic underlying technology of the LLM can achieve that level of intelligence.

And brains do it on about 20 watts.

Training takes many years though.

Training took hundreds of thousands of years. Everyone just gets a foundation model to fine tune for another couple of decades before it can start flipping burgers.

It's been something like half a billion years since the first brain.

That was a much smaller model, couldn't do much more than crawl around and run away.

It was still used as part of pretraining the current model.

Nonsense, the current model is a new architectural approach.

It was all explained in that recent paper, "Attention is all your meat"

Reply on news.ycombinator.com