> we don’t fully understand. That's a language trap. It's true that we do not understand the environment fully, in the sense that we don't know how every singl

> we don’t fully understand. That's a language trap. It's true that we do not understand the environment fully, in the sense that we don't know how every single living creature on it will die. But we understand it well enough: we can see the big trends. We don't know exactly how times we will hit the cliff as we fall, but we can see clearly that we're falling.