I suspect the initial post was a response to Charlie Stross's remarks about existential risks: http://www.antipope.org/charlie/blog-static/2015/04/on-the-great-

I suspect the initial post was a response to Charlie Stross's remarks about existential risks: http://www.antipope.org/charlie/blog-static/2015/04/on-the-great-filter-existentia.html http://www.antipope.org/charlie/blog-static/2015/04/on-the-g... Since we live in the twitteresque dark ages there's no way to know. Vannevar Bush would be turning in his grave.