nostr:npub1d5xydvk5zlf7pm7r3daxf9knxqvxxaceastnme98myw2uvkv44qq4dj9m5 Either the Universe is infinite or its finite. If it's finite, we can't measure the curvature in the Universe today, so that sets a minimum size. But yeah, it would wrap around on itself, like a 3D game of asteroids.