And there could be a teapot in an orbit around the Sun. Do we have any evidence for that being the case though?
So far, there's a distinct lack of "wall" to be seen - and a lot of the proposed "fundamental" limitations of LLMs were discovered to be bogus with interpretability techniques, or surpassed with better scaffolding and better training.
He’s not saying there is a hard wall he’s saying there’s a point where we’ll need new techniques or technologies not just refine the current one. Less of a hard barrier like the speed of light than an innovative one like creating artificial ammonia to make industrial amounts of fertilizer to support increasing crop amounts