>people today can't calculate a 20% tip Earlier this week, I spent several minutes talking one of my co-workers through how I 'did math in my head' to figure o

>people today can't calculate a 20% tip Earlier this week, I spent several minutes talking one of my co-workers through how I 'did math in my head' to figure out my half of the 20% tip we were leaving for lunch. Even something as rudimentary as moving the decimal place over one and doubling the result seemed like wizardry to them. They aren't dumb. They've literally just never thought one second past reaching for a calculator. Which is kind of scary, because it means they have no way of sanity checking any numbers they come up with.