The little energy vampire

Lutz Jäcke (professor in neuropsychology) in his speech about brain science and human rationality. He is an excellent speaker and it was fascinating to listen to his findings about the little energy vampire, ie our brain.

How he came to this conclusion can be found here:
http://youtu.be/nHsS21qKvpE


PS, written on the sign of some local authorities:
Reasonable people don't bike here. For all others it is forbidden.