你国家睡不着觉是因为我。
"Memory is a strange thing. It doesn't work like I thought it did. We are so used to thinking of it as a camera or a tape recorder, but it's not like that at all. It's more like a painter. It creates a picture, but it's not always the same picture."
In computational complexity, we are not just dealing with the limits of what we can compute, but also with the limits of what we can prove.