Satoru: Aren't we programmed to respond to most events like machines? Liao: Yes. To a large degree, education is a matter of de-programming. Tim: I'm not so certain. What's general called 'de-programming' is often nothing but another program. I'm not not sure humans can ever be 'deprogrammed' – the mind has so many levels of programming that the whole notion of 'deprogramming' is absurd. Melissa: I agree. However, humans aren't computer systems. In fact, we are more like trees – constantly adding new layers over old ones. Liao: That makes sense. Inside of us there's a lot of 'dead wood'. There is merely a thin layer of something that's living.