Mental Math

False promises, false advertising that this wouldn’t be a bad course to take. I don’t need this to graduate, I didn’t need him in order to be happy. Learning what destroys differentiability, wondering what destroyed what we had. Why doesn’t this equation make sense? Why did things end between us? My teacher talks about how 1-sided derivatives are different, was it all in my head? This fake scenario that it could ever work out. We’re told to remember a function is continuous for all x’s but not differentiable for all x’s. Was, he just using me? Was it even real?