The current tech won't get us there just like the steam engine or the internal combustion engine didn't get us to the Moon. And getting to AGI is probably more like getting to Mars.
Comercial fusion is still decades away.
Solar and lithium batteries are getting cheaper every year but unfortunately still lots of political issues in many countries.
Wait, which theory is that? In church turing theory the computer can compute any computable function.
Why do we think that the computer can model any physical process?
Or are we suggesting that you can build a computer out of whatever physical process you want to model?
> Wait, which theory is that?
The Church-Turing-Deutsch Principle. (Which isn’t a theory in the empirical sense, but somewhat more speculative.)
> Or are we suggesting that you can build a computer out of whatever physical process you want to model?
Well, you obviously can do that. Whether that computer is Turing equivalent, more limited, or potentially a hypercomputer is...well, Church-Turing-Deutsch says the last is always false, but good luck proving it.