>but with neuroscience, it seems the research isn't there yet.

The interesting aspect of your comment is in fact: what is the capital outlay and time needed for the science to actually get there.

Elon has a track record of severely under-estimating those, but he is also smart enough (via PR / govt grants / leveraging past successes, etc ...) to stretch both beyond anything reasonable, to the point of actually reaching success (e.g. TESLA, SpaceX).