"The human mind, being a part of the Universe, is bounded by the laws of science, both known and unknown."
Since science is a human invention and practice, I can't really parse that sentence.
" That makes it an extremely complicated machine, one we do not fully understand, but a machine nonetheless."
So what was the mind before we had machines?
Sorry, I can't parse the first sentence. I don't understand how you got from the first sentence to the second sentence.
Joanna