The big market story of the week has been the latest flash crash caused by hackers taking over the Associated Press Twitter account. It’s not every week that an errant tweet temporarily erases a few hundred billion dollars from the market, only to give in all back in a matter of minutes. That few minutes created a seemingly endless supply of analyzing and rehashing over the last few days… but that’s not the only thing that caught our eye this week. Here’s what we’re looking at headed into the weekend:

• A UCLA professor teaches game theory… by giving students the opportunity to cheat (KCRW.com)
• The time travel movie flow chart (Popular Science)
• Sleep deprivation proves to be a powerful antidepressant (Scientific American)
• Star Wars’ 501^st Legion invades Chicago (Red Eye)
• Twitter in the spotlight thanks to Boston bombing, flash crash (New Yorker)
• John Stewart gets laughs over gold’s collapse (The Daily Show)