i suspect that to fully understand the universe, we need AGI in a similar way to needing a telescope to understand galaxies
our unaided faculties are not good enough, and we need better tools--or in this case, smarter tools--to help us make sense of reality

also, i think AGI is probably necessary for humanity to survive--our problems seem too big to solve for us to solve without better tools :(
it's always hard to think about what tools will enable, but i cannot begin to imagine what we'll be able to achieve with the help of AGI