Dorks in cubicles

What might U.S. economic productivity have been if it weren't for the Monty Hall problem or the 0.99999...=1 debate?

P.S. I continue to be surprised by how many people think that they have a 50/50 chance in the Monty Hall problem after Monty opens a door. Their logic most often turns out to be, "well, I can either stick with what I have, or switch. Two choices, therefore 50/50!" The proper response to this, which only occurred to me as I drove home, is, "By your logic, I have a 50/50 chance of winning the state lottery. After all, either I win it, or I don't."