Power Outage

How long would you last without electronics if the power went out?

My record is 5 minutes, and I'm sure that's how long most of you would last too.

The 50-50-90 Rule

Ok, after playing Sudoku for probably 10 minutes, I'm convinced that the 50-50-90 rule is a fact.

Basically, "Anytime you have a 50-50 chance of getting something right, there's a 90% probability you'll get it wrong."