The evolution of religions...as ever so often nobody could explain it better than Jared Diamond. He also seems vastly better at saying these things without antagonising people as much as Richard Dawkins or Daniel Dennett.
Something to keep in mind: according to Ernest Moniz, biofuels can deliver about 0.5 Watt per square metre of land planted with bio fuel crops. Considering that currently the world consumes about 12.9 terra watt from fossil fuels this implies that replacing fossil fuels with bio fuels requires about 26 million square km of land. That would correspond to about 1.3 times current arable land; i.e. even if stopped eating there is not enough land to support current energy needs, let alone future ones...
Which information should be on the internet? Should everything be recorded kept and kept in archives? For most things there is a specific time to express them. If expressed at the wrong time they are not adequate, misunderstood, boring. A blogger reflects this wonderfully. The most recent things are on top. Older things are in archives and dissapear naturally into nothingness at some point. Mondpanther