Sometimes string figures were used to illustrate stories, as in the case of an Eskimo example that depicts a man catching a salmon. Sometimes they had magic or religious significance.
Many people on the political left found my work psychologically liberating. They began to say: once you realize that standards emerge historically, then you can see through and discard all the norms to which we have been falsely enslaved.
If you compare the size of our reserves of Saudi Arabia and the whole Middle East, it's like three times as much as all of that combined and that's just the easily, readily available 1800 billion barrels and there are probably 3 billion barrels that are commercially just under that, available.