I'm sorry it's a bit long, TL;DR you need to be explicit about people you trust. Those people do the same an then thanks to the small world effect you can establish your trust to any entity that is already trusted by some people.
No global ranking is the key. How good some information is, is relative and depends on who do you trust (which is basically form of encoding your beliefs). And yes, you can avoid information bubble much better than now but writing more when I'm so late to the thread seems a bit pointless.
I'm sorry it's a bit long, TL;DR you need to be explicit about people you trust. Those people do the same an then thanks to the small world effect you can establish your trust to any entity that is already trusted by some people.
No global ranking is the key. How good some information is, is relative and depends on who do you trust (which is basically form of encoding your beliefs). And yes, you can avoid information bubble much better than now but writing more when I'm so late to the thread seems a bit pointless.