alt Hacker Newsnice ... i think i get the idea - it's effectively the same / similar benefit as batching, but you're batching against your own speculated future path. Which would be pointless if you didn't have a high probability path to evaluate against - but the draft gives you that.
I'll add an expansion here. It's more useful to you locally, as you have excess compute that's generally wasted. If you're serving multiple user and trying to max output, you might cost some in this case