"What is and What should never be."

I would like to discuss the subject of variety of species, with the current framework of an MWI cosmology in mind. Consider either an infinite (in space and time) universe, or a sea of finite (large beyond all comprehension) universes. Both provide an adequate background for the discussion. We can imagine a multiverse where humans exist on an infinite number of planet Earths, as well as a infinite number of other extraterrestrial planets, asteroids, planetoids, space stations or spaceships where humans also exist (both within our own universe - separated by tremendous gaps of space and or time, or within other universes that are somewhat similar to our own - terrestrial or extraterrestrial in nature. But what of the worlds (universes) that are so different from our own that the very act of visiting them would prove fatal? How many worlds could exist with laws of physics so foreign, so odd and so chaotic that the creatures that dwelt within could never be seen, heard, smelled or touched? How many worlds would fall so far from our limited experience here, that we are forever incapable of grasping their very form. This foray into different realms and experiences should lead us to another more profound question: What actually exists? There are at least two answers to this question. (1.) Everything exists (somewhere, somehow and somewhen) the second answer is troubling. The second answer is that (2.) nothing actually exists. Both answers are simultaneously correct. The truth is that there is not just one truth, not just one way of seeing what exists or does not exist. The truth is like a many-sided puzzle-box, that changes shapes, qualities and properties as one revolves around it. Every side looks different, and every side is real. There is not one true nature or one true way to see or interact with it. Many people look at life from different sides, different perspectives, and truly feel as if they are viewing the correct side, seeing at last the true nature of reality. Think if you will about the reality, the lawfulness the solidity of even our most fanciful dreams. They appear to be infused with all the correct conceptual elements of life, no matter how warped or shattered, they seem to function as a whole. Most importantly, we usually accept this artificial reality scape as being, real enough for the time being. These dreams, these thoughts, this life, is real enough for the time being, and that is enough for me.