Rudy Rucker

'Dirtbag' is just the term we use, like a 'gnarly dude' in surfing. Within the climbing culture, it means being a committed lifer: someone who has embraced a minimalist ethic in order to rock climb. It basically means you're a homeless person by choice.

Set your sights high, the higher the better. Expect the most wonderful things to happen, not in the future but right now. Realize that nothing is too good. Allow absolutely nothing to hamper you or hold you up in any way.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.