There's good reasons to expect time travel is physically impossible.
Your brain is an existential proof that general intelligence isn't impossible.
Figuring out the special sauce that makes a human brain able to learn so much so easily? Sure that's hard, but evolution did it blindly, and we can simulate evolution, so we've definitely got the tools to make AGI, we just don't have the tools to engineer it.
Your brain is an existential proof that general intelligence isn't impossible.
Figuring out the special sauce that makes a human brain able to learn so much so easily? Sure that's hard, but evolution did it blindly, and we can simulate evolution, so we've definitely got the tools to make AGI, we just don't have the tools to engineer it.