But that is the point, I'm not saying Adastra's Earth and Echo's "Earth" are the same planet. What I meant is that Echo and the smoke room events are happening in a whole different planet, but placed in the same universe.
Oh, hm. Well, there are no facts with, or against this being true. I guess this can be a cool headcanon until it is revealed to be true or not.
It's all probably wishfull thinking, but I think it's a fun theory to think of :3