what else makes you optimistic that there will be enough incentives to ensure alignment?
Well, before you build superintelligent systems that could destroy the world, you probably build subhuman AI systems that do economically useful tasks (e.g. a personal assistant that schedules meetings, books flights, etc). There’s an economic incentive to ensure that those AI systems are doing what their users want, which in turn looks like it incentivizes at least outer alignment work, and probably also inner alignment (to the extent that it’s a problem).
Well, before you build superintelligent systems that could destroy the world, you probably build subhuman AI systems that do economically useful tasks (e.g. a personal assistant that schedules meetings, books flights, etc). There’s an economic incentive to ensure that those AI systems are doing what their users want, which in turn looks like it incentivizes at least outer alignment work, and probably also inner alignment (to the extent that it’s a problem).