It's also worth pointing out that in the same survey it was well agreed upon that success would come sooner if there was more funding. The question was a counterfactual prediction of how much less progress would be made if there was 50% less funding. The response was about 50% less progress.

So honestly, it doesn't seem like many of the predictions are that far off with this in context. That things sped up as funding did too? That was part of the prediction! The other big player here was falling cost of compute. There was pretty strong agreement that if compute was 50% more expensive that this would result in a decrease in progress by >50%.

I think uncontextualized, the predictions don't seem that inaccurate. They're reasonably close. Contextualized, they seem pretty accurate.