This is pretty big news when you look at the numbers floating around time to train AIs like Stable Diffusion - which is by far the most disruptive change that's happened recently. 150,000 hours just went down to 100,000 hours if we take the conservative estimate.
Not fast enough (not at the price point) but getting there: of course since it's an entirely parallel problem, the real metric is cost-per-model since in reality you'd just buy time from the cloud.
I figure we're going to start seeing some big changes once cost-per-model puts it within reach of the hobbyist. If I today could buy a custom model for say, $1000 - that's accessible to the hobbyist experimentalist.