It feels like there are a whole bunch of factors (though I'm no expert). It took a few versions of 3 to hit a sweet spot (in some cases features that were remo

It feels like there are a whole bunch of factors (though I'm no expert). It took a few versions of 3 to hit a sweet spot (in some cases features that were removed in the initial version of 3 have slowly been re-added in subsequent versions). There were a lot of crucial libs that needed to be ported. Just general inertia.