[CaveTech]

These two points are entirely unrelated. Scaleability in that meme is not considering horizontal scalability, which approaches infinity for literally any language/framework. It only makes sense in the context of vertical scalability, and gross req/sec offers no insight into whether or not that's true.

[Gigachad]

I can't see how vertical scalability even matters for rails You can just start more instances. It's not like two active web requests need to interact with each other.