I probably overstated the case, but I was mainly going on what this video said about string theory. It’s had no reliable test results, no predictive power. It’s a useful mathematical model, but not actually a good theory to explain the real world.

I don’t even know where I got that idea about modified gravity from. I think I vaguely saw a few headlines about it recently but I didn’t even bother to read the articles they came from, and I somehow allowed that to stick in my brain. My bad.