We have x/0 = +infinity, -x/0 = -infinity and 0/0 = not a number, where x cannot be zero, all well-defined by human intelligence. Of course, you can define anything you want with your own intelligence, but IEEE has made up its mind for you so you don’t have to worry about anything arbitrary like that. Here’s the better question. How does nature define it? After all, nature is above God and all else. Unfortunately, nature is wise enough to avoid this question by introducing a universal speed limit for everything massless. Of course, there are physicists who believe that everything has mass, even a photon or a gluon. However, the question remains: what caused a universal speed limit to exist, if not to circumvent division by zero intelligently? By the way, there are many physical equations we know of that circumvent division by zero intelligently. One must wonder whether nature is an intelligent being of its own, a math god that cleverly invented physics that skates around all known mathematical paradoxes. Incredible, to say the least.
The problem with relativistic physics is that a photon is not only massless but also timeless and spaceless, at the speed of light. Yet, a photon can still interact with other particles, presumably without taking time. Spacetime cannot be the background of particles if some of them can bypass it. So, something is definitely really wrong here. Xia Ying, one of the main characters in my novel, proposed the possibility of time in higher dimensions, so as to maintain that all physical transactions take time. Everything takes time, impossible to bypass. Yang Shu, another main character in my novel, will soon challenge Ying with an alternative possibility that both space and time don’t exist, just because they break the principle of conservation. Everything takes momentum instead, which manifests itself in the form of energy, space and time. Shu is not a believer of infinity. She thinks the notion itself is misleading. In fact, conservation is eternity, but at any point in time, history is finite. There’s no actual infinity. Shu believes in a beginning of everything, which she wants to prove to establish her status as a leading physicist.
So, how about space and time being the synchronization point for all physical objects? How do things actually meet? Zero is really not that different from infinity. Everything takes something. Nothing is free. Plus, spacetime is nearly continuous just because the population of photons can be nearly infinite within a finite space. This means that we cannot explain instantaneous interaction by state superimposition within some sort of primitive quantum loop. Everything does take time.
Will Ying or Shu win (https://simplyjet.wordpress.com/2015/08/15/physically-and-not-just-mathematically/)? I don’t know, but I can tell you that I am not that into birds. I believe that the winner of this universe is a mammal and not a bird.