You can also imagine using such prediction markets to incentivize speed + proper allocation by pre-purchasing "Yes" and awarding these shares as part of the involved people's compensation.
For example predicting whether a government infra project (california rail, etc) will complete under budget and within stated timelines. If the probability of this happening is low on prediction markets, corrective action can be taken. More generally, I think prediction markets can significantly improve capital efficiency by being a leading indicator of misallocation.
To contribute to a future where we can understand the nature of reality and discover answers to important questions. Most other goals are artifacts of evolutionary pressures or become counterproductive in a world of abundance (i.e can be reward hacked).
Carbon capture will become feasible once we have cheap energy. Building fusion reactors is an engineering problem (AI can help), and the cost of building them is mainly dominated by labor instead of raw materials, which humanoid robots will drive to near zero. AI could of course go very wrong, but it will make environmental problems seem trivial.