Insert mildly cynical comment here. He says:-

"All of this has taken me from where I was to where I am now, a self-described “joyful pessimist”, freed from the burden to save the world, and free to just live, to just be.

That doesn’t mean I don’t still support humanist movements like Occupy, and the radical activism of the Deep Green Resistance movement, even though I don’t think they will accomplish anything enduring. Their heart is in the right place."