This morning, my computer had a little functionality hiccup that got me wondering: why is this even possible?

Just a couple of observations about numbers used to identify things.

Yesterday, I woke up with a blinding headache due to an oncoming cold. I went to my medicine cabinet, pulled out a bottle of analgesic, and found I couldn’t remember Ibuprofen from Acetaminophen, and therefore couldn’t tell whether I was supposed to take one or two.