[Anti-Utopian]

However, there was a companion galaxy close to it creating new stars at a frantic rate equivalent to about 350 suns per year.

So what you are basically saying is, the time needed for a galaxy to be formed is highly variable and contingent on the activity of many unknown and little-understood phenomena. You'll pardon me, then, if I find a galaxy forming in 24-hours hypothetically possible, given this disclosure.

[JT1867]

No. Galaxy formation is a well understood phenomenon. It really all depends on gravity. Jump up and down. That same force that draws matter together is what makes galaxies. Its as simple as that.

[AussieJoe]

“So what you are basically saying is, the time needed for a galaxy to be formed is highly variable and contingent on the activity of many unknown and little-understood phenomena. You’ll pardon me, then, if I find a galaxy forming in 24-hours hypothetically possible, given this disclosure.”

Hypothetically anything is possible, but how probable is it?

Then there’s the question of forming a planet and fully inhabiting it in the 5 days following the ignition of a new star. How probable is that?