I'm not enough of a physicist to explain why this framing is wrong, but I took enough physics in college to know it absolutely is wrong. Fun fact from my "Mode

I'm not enough of a physicist to explain why this framing is wrong, but I took enough physics in college to know it absolutely is wrong. Fun fact from my "Modern Physics" homework: a system of two photons can have mass, if they're traveling in different directions. In parallel though, they're still massless.