We found VY Canis Majoris, a star so big it can't even be seen in scaled illustratations with the sun itself.
However, we stop at particle physics, or quantum mechanics, i.e. particles, subatomic, etc.
If stars keep getting bigger, and we keep finding things bigger, and the size of the universe still is unknown, why does the size (oppositely) have a limit?
Like, why is the atom the "smallest mass", but the "largest mass" is indeterminate?
I hope you get my point. If not, please tell me how I should improve.