Sure, I like the idea of space megaprojects. I doubt sunsails in orbit would be profitable though. How would you monetise it? Put massive ads on them? Charge everyone a subscription fee?
Now, governments could probably do something like that, and I wouldn’t be against it if safety and unintended consequences were taken into account somehow.
Also, I thought you believed space exploration tech was useless.
I agree there are many solutions. I don’t think markets and capital are going to make them happen.
We can probably buy time with tech solutions. Long-term solutions will have to involve major fundamental sociopolitical change.