in, and tax stem and science works that way. we run an experiment, collect data, rerun it, tweak the variables because we don't know the truth. nobody does with a capital t, truth. we try to understand how the world works. so i really think that democracy and science are pretty closely related in that sense. >> john: i should tell the audience you're wearing a pin called skeptic, he runs a magazine called skeptics and i have stolen stories from. >> that's why we're here. >> john: another myth you say, that humans years ago, native peoples were just naturally peace loving and lived in eco harmony with the environment and europeans came and corrupted them. >> this is a historical myth,