Here Are The Pathways
I think this chart misses the most important (non-extinction) pathway, which is that an AI is aligned with the wrong set of values and permanently fixes us on a highly suboptimal path. The level of suboptimality could range from “good but insufficiently flourishing” to a moral catastrophe, e.g. life is good for (post-)humans but other sentient beings are permanently tortured for our mild convenience—something like factory farming, but on a bigger scale and lasting until heat death of the universe.
“AI-driven power concentration’ also feels like a weird category. Power concentration isn’t inherently bad if the ASI in charge has good values. Power diffusion can lead to catastrophic outcomes as well, e.g. competing ASIs torture simulations of their principals as leverage. Although that seems distinct from “lock-in risk” so it probably doesn’t belong on your chart.
Is the idea that AI companies wouldn’t be able to make money if everyone used local AI instead, and they’d be forced to close down?
If the idea is that some people can use local AI to cut down AI companies’ revenue, that might be net positive, although I don’t think it would ever make a big enough dent to force AI companies to shut down. I don’t do it personally but if people want to, I say sure, go for it.
That’s true, but the other side of the coin is that if a local AI is dumber, then it’s also going to be less useful.
I don’t think that’s realistic. Back in the day there was a lot of talk about how AI will be safe because we will keep it in a box with no internet access. Then as soon as AI companies built AI that could usefully use the internet, they hooked it up to the internet. Having internet access is just way too useful to expect people not to do it.