Reading lesswrong? I've never read lesswrong and I've have a general awareness of the problem for a really long time. I guess AI boxing (and why it actually does not work) somehow got into physical books I read some time around 2010 or earlier. Even if you watched 2001 you might get thinking about other ways "just pulling the plug" won't work. Let alone stuff like Colossus: The Forbin Project.