Autonomous recursive self-improvement needs to happen. It doesn't have to happen tomorrow, or in 10 years even, but it has to happen sometime in the near future, or we're kinda screwed.

Why say this? Well, of the plausible futures from here, the worst one is where AI plateus just good enough to make us all useless (or just destroy the pipeline of a critical mass of capable humans for assisted RSI), but at a point dumb enough that we don't get human-superior AI. This might happen or not, but there's no way to predict when something that doesn't exist will, so it's one of those horrors that can keep you up at night. Some of those skeptical about RSI have likened it to the Great Filter.