So long as there is an observer to give this reality the “shape” it has, yes, it will “exist”. I’ll give you a metaphor to illustrate how this works.
Everything in this Universe is linked like computers in a network. We all have our own “copy” of all of the various “layers” of the Universe just like every computer has inside of it all the “layers” of reality from the BIOS in the motherboard (which would be like atoms), the software inside the graphics card, the operating system (which would be like the “rules” of biology) and the various programs installed on the operating system (like individual animals, humans etc). So long as ONE computer in the network still has a “copy” of a program or of the operating system, it can “spread” to other computers (like when we reproduce, basically), but if ALL computers loose a copy of a certain program, then that “version” of reality ceases to exist. For instance, if ALL (every single) bats died tomorrow, the reality THEY perceive would cease to exist instantly. And their reality is a SUBJECTIVE perception of an otherwise INFINITE reality (there is no objective “cut off” point between the various light frequencies/colors, there is no objective “cut off” points between what is “sound” and what are radio wave frequencies)… The reality a bat sees is unique, and the way it interacts with reality, as a consequence, is also unique.
This doesn’t invalidate our “science”, it just means that “science” is the same as deducing laws from understanding how the motherboard of the computers work. Sure, you can “deduce” laws from it, but keep in mind that if you update the motherboard BIOS, your “science” will be wrong.
Like I said, the understanding we THINK we have of our reality, via the lens of science, is problematic because we continuously assume that it’s the TRUTH at every point in time, and act as if it is, until we have proof that it is otherwise. But you can’t “future proof” science. You can’t “predict” which truth will become a lie. A concrete example: if you asked a scientist about the rate of expansion of our Universe a decade ago, they will have told you, with absolute certainty, that it is a constant. And now, that’s proven to be false. https://gizmodo.com/hubble-measurements-confirm-theres-something-weird-abou-1834339830/amp?fbclid=IwAR1B6YrAOSyw6X4wnTfyY0wDi3tIVJJM1g8thQKxOunywkd_vwBcmOSP5Ps
What other “hard science” truths will be invalidated tomorrow? No one knows. And that’s the major problem of science. Is that you are always sure, and act as if you were sure, until you’re not, and you move on to another truth and pretend that one is “real”, “this time, we got it right”. You can do that of course, but at least be honest: it’s not science, it’s “the best temporary knowledge we have given our inherent limitations to grasp and understand an infinitely complex Universe”. :-)
