Sure, there is no other way for computer science to go. AI always been the last and most important frontier. There may be more AI winters, there may be more AI summers. Ultimately people will continue working on this problem until it is solved or computer science goes away.

>There’s plenty of active research in higher-level “cognition” like decision theories and semantics, so I don’t think it’s crazy to believe good results will emerge there in the next few decades.

Interesting. Can someone elaborate about this?

I would start by looking at what these people are researching:

http://cocosci.mit.edu/people

https://web.stanford.edu/group/mbc/research.html