A computation is a process that obeys finitely describable rules.
It's soothing to realize that my mind's processes are inherently uncontrollable.
Science fiction writers put characters into a world with arbitrary rules and work out what happens.
I think dry nanotechnology is probably a dead-end.
Unfortunately our nation, nay, our world, is run by evil morons.
All living things are gnarly, in that they inevitably do things that are much more complex than one might have expected.