> what is dark matter Dunno. Does it even exist? Is there any inkling of this proposed stuff NOT acting according to some deducible laws. Seems pretty boring s

> what is dark matter Dunno. Does it even exist? Is there any inkling of this proposed stuff NOT acting according to some deducible laws. Seems pretty boring stuff - interacts with regular matter just via gravity. Do we have it in our head ? :-) > is there a theory of quantum gravity Is that a practical issue for predicting behavior of physical systems at any given scale? I'm pretty sure we don't need quantum gravity to adequately understand the chemistry of our brains. > what is consciousness Self-introspection via feedback paths in the brain. Damage those feedback paths and you'll get a condition such as "blind sight" where you can provably see, but not be aware of your ability to see. > how does the universe exist Dunno, but we're in it, and governed by how things behave in it. That question seems a bit off-topic regarding free will within our universe! > is there any kind of fundamental randomness Dunno. I'd bet not. Does it matter at the level of classical physics and above? > are two particles of same type actually the same Not sure what you're referring to. The Pauli exclusion principle? > how about Godel's incompleteness theorems, etc What's the relevance to the discussion? I can't prove what the stock market is going to do tomorrow either.