Tool - something with a use on one end and a grasp on the other end.

This is pretty much the infrastructural stuff that comes along with large quantities of energy. Whichever technology we are looking at has serious hazardous issues.

How can I throw my life away in the least unhappy way?

As you gain elevation [on the mountain] your IQ goes down - but your emotional affect goes up, which is great for having a mythic experience, whether you want to or not.

The great problem with the future is that we die there. This is why it is so hard to take the future personally, especially the longer future, because that world is suffused with our absence.

When a generation talks just to itself, it becomes more filled with folly than it might have otherwise.

Humans have made a huge hole in nature in the last 10,000 years. [With de-extinction,] we have the ability now, and maybe the moral obligation, to repair some of the damage.