I had this guy as my math teacher. He was an absolute machine. Always came in at exactly the same time, put his bag down, took his watch off, and started transm

I had this guy as my math teacher. He was an absolute machine. Always came in at exactly the same time, put his bag down, took his watch off, and started transmitting knowledge. Loved his classes. All homework problems were really realistic with messy answers and the test questions were easy. Only a few problems for both. Once, when talking about higher dimensional math, a student asked if string theory said there are 13 dimensions. He quickly replied "yeah" and I'm sure he knew it was more complicated than that but it was an irrelevant question. Without thinking I blurted out it was consistent with up to 13 dimensions and the whole class turned around to look at this kid who corrected The Machine. He quickly admitted that was true and moved on. Highlight of my education.