If you’re on the ocean looking at the horizon do you best estimate that it goes on 20x further? If you do you are assuming there is an end to earth 🌎 but a circle has no end it goes on forever you may reach a point you’ve been before but you never reach an end. I would have to say this is not an anomaly in the universe as very planet is shaped the same. And the universe must go on forever as life does.