In the scenario, AI researchers’ serial speed reaches about 90× human speed, after which other constraints become bottlenecks and additional serial-speed gains provide little benefit.

“serial speed starts to matter a bunch because you switch to AI researchers that have like orders of magnitude more serial speed than humans but it tops out like we think that like over the course of our scenario if you look at our like sliding stats chart it goes from like like 20x to like 90x or something over the course of of the scenario which is important but like not huge and also we think that like”

“once you start getting like 90x serial speed you're just like bottlenecked on the other stuff and so like additional improvements in serial speed basically don't help that much um with respect to the quantity of course yeah we're imagining you get like hundreds of thousands of ai agents a million ai agents but that just means you could bottleneck on the other stuff like you've got tons of parallel agents that's no longer your bottleneck what do you get bottlenecked on taste and compute”