React is a text-book example of what a well-designed component model can do to a development cycle: a literal 5-20x productivity boost compared to the old vanilla JavaScript with jQuery and manual HTML manipulation.

I was somewhat skeptical in the early days of React, but once static websites with rehydration became a thing, I was fully in. So much power.

Not really. See a better way here: https://github.com/wisercoder/eureka