Very interesting video below about what the natural selection is based on – collaboration! The species that can collaborate the best will be most successful. This theory is also interesting in relation to the hacking culture and development of open source software. By collaborating on developing new things we will reach further.
In the end he also makes a really interesting point about what happens in Greece and the arabic world right now.
If the one thing that makes us survive the selection is to cooperate, why do we keep fighting?