least you've got two coasts so in linguistics you had a salary of East Coast Chomsky camp and a West Coast film or on lake off camp and it was the same with AI that in San Diego though a group of people particularly David Rama Hart who came from psychology but was strong mathematically who basically had a completely different view of AI he was interested in how it actually happened in the mind and he thought understanding had happened in the brain would be useful for understanding that Ruth unlike many psychologists and he just