Birthdaying alone

This week, I keep seeing this video everywhere (I think my H/T goes to Know More but it's hard to remember these days):

It's a sad little premise, isn't it? Here I thought a wedge-shaped slice of birthday cake is a perfect thing, each bite a slightly different experience with its varying thickness and cake-to-frosting ratio. Nope! We asked science, and science told us to cut cake this weird, crazy way instead—so that a person can eat a progressively smaller rectangular slice each day, with progressively more frosting on it, because you don't want the cake to get dry throughout the week, because of course you're going to be consuming a birthday cake alone, one slice a day.