Imagine this, but x1000 and built into React. That's the goal of Fiber. (Great post, @paularmstrong!) https://medium.com/@paularmstrong/twitter-lite-and-high-performance-react-progressive-web-apps-at-scale-d28a00e780a3 …pic.twitter.com/Kipn498OPy
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And better interactivity is a *great* thing. A huge win for users. But not the same as "faster" at the limit.
You're right, yielding does not reduce total work (increases it, in fact). Combined with batching it can. Depends on the type of work.
Fiber is a lot more sophisticated that just time-slicing though. Can also pause, abort, rebase, interleave, and prioritize.
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