Maybe she's not into popular science considering she's a scientist. That's where most people come to hear about black holes, wormholes etc. Presumably Joe would be aware of stuff like that.

Particle physics is also quite far removed astrophysics as well. Any knowledge of the mechanisms occurring in high energy physics necessitates a knowledge of special relativity since you're dealing with things moving so fast, but not general relativity, since everything that happens occurs over extraordinarily small…

It's not totally absurd that Caitlin didn't know what was meant by a singularity. A singularity isn't a term attached solely to gravitational phenomena; there are other singularities out there such as the mathematical and technological kind. People have this assumption that, due to pop-culture science, everyone must…