so imagine in the very far future, either we or another civilization decided to capture the entire output of the sun with a Dyson sphere.
very cool.
but what if you wanted to build your own star? I'm not talking like building a reactor on earth and creating a "mini-star", but rather i mean like collecting the gasses from gas giants and pooling them together onto a gravitational core like a dead planet till you had enough material that it would start the natural process of fusion?
OF COURSE I know it is possible and probably not at all necessary for any purpose realistically, but I can imagine in the far future some super powerful species decides to build its own solar real-estate in the middle of interstellar space.
just some shower-thoughts I had