DON'T WE NEED REALITY TO EXIST

No, not really. Existence is its own measure of proof. But reality, as we think we experience it, may be entirely subjective. We too can be reduced to cells, atoms, and molecules. And those molecules can be reduced to protons, neutrons and electrons which can further be reduced to quarks, leptons and muons and so on. What we view as objective reality- the idea that we can observe, measure and prove what is real and those things we cannot are theoretical or imaginary- is actually a subjective reality that we either unravel, create, or dis-obfuscate by the simple act of observation. Theoretically, if we could zoom in past the muons and leptons and keep going deeper and deeper, we could reach a point where all objects in the universe are indistinguishable from each other; because at the quantum level everything that exists is just a plethora of nearly identical subparticulate entities. This version of reality would render the concepts of space and time pointless. Time would only exist as a construct by which we give meaning to our own observations. And those observations would merely be the classical side-effects of existing in a quantum universe. So, in the grand scheme of things, it's possible that our reality is little more than a fleeting purposeless arrangement of molecules. Everything that encompasses our entire universe may be nothing more than a brief hallucination caused by quantum vibration. One day the human race may have to reckon with the ultimate truth that we exist in a reality that doesn't.