Negative Mass

I’ve been trying to lose weight, so I’ve been studying the physics of negative mass.

Basically it doesn’t exist. But physicists are have run into a serious problem. They think they can use astronomical measurements to put upper bounds on the total mass of all 3 kinds of neutrinos. But when they do this, the upper bound tends to come out negative!

This doesn’t really make sense. In fact, if you look at the details, you’ll see it’s the result of extrapolating an approximate formula beyond it...