It's funny you bring this up, because Platonic idealism has been thoroughly debunked in the past century. Some of the latest thinking on the subject is known as "new materialism," and its core tenet is exactly the "technical evolution" that Yossi talks about in the article. I recommend Manuel de Landa's War in the Age of Intelligent Machines for an introduction (it's as near to a hacker's philosophy book as I've seen).