If you ask an economist what’s driven economic growth, it’s been major advances in things that mattered – the mechanization of farming, mass manufacturing, things like that. The problem is, our society is not organized around doing that.
科学并不试图解释，甚至几乎不试图诠释，它主要是构建模型。
The only way to discover the limits of the possible is to go beyond them into the impossible.