It's the 21st century, people work long hours to try and be successful, and the information technology age requires you to be on your a-game as much as possible. So I ask of HN, if you are comfortable admitting, do you take any mental performance enhancement drugs? What are your experiences with them? Do you get side-effects or an inevitable crash?I got the idea for this question after seeing this old techcrunch blog post: http://techcrunch.com/2008/07/15/how-many-of-our-startup-executives-are-hopped-up-on-provigil/ And that was in 2008, now it's more than 4 years later.