>>11816953>If something is never-ending, it never ends. And therefore, it never becomes “never-ending”, because you can’t check that it never ends.You basically restated the halting problem.
So, it's fair to be skeptical that infinity exists in a particular domain. For example, to be skeptical of the claim that the universe is infinite in size.
But it's not reasonable to be skeptical of the very concept of infinity or of the possibility that infinities could exist in our universe. They may or may not be possible, but they can't just be discarded outright.