I'm not going to bore you re-hashing the simulation hypothesis, if you don't know about or want to learn more about ask ChatGPT. But basically, it's a pretty logically sound argument that we don't live in "base" reality - that our consciousness is real, but or "real" existence is elsewhere. Not unlike traditional concepts of the soul and the afterlife, but just reframed from a more modern, secular perspective. Or the Matrix, if you like.
At first I thought the argument was plausible, but likely untrue. It took me a LONG time to realize it's almost certainly true, which lead to the next inevitable question...why? I think I have a coherent and logical answer (purely speculative of course...hehe)
We're not in a Matrix situation, bodies trapped in pods by robots to be harvested. A much more likely scenario is this: We're simulating our past selves (i.e., your current reality) from the future. Why we did this again, is a matter of speculation, but I suspect it's because we eventually become so intelligent, so integrated with AI and other forms of intelligence, we forgot what it "feels like" to be human and have the human experience.
So we created simulations for our minds so that we could experience the full breadth of human existence again, both as the observer and the observed.
I highlighted the last section because this is critical. In order to have a genuine human experience, our simulated selves cannot know they're reality is simulated because that knowledge would ruin the whole experiment. If our (future) selves truly want to desire the human experience, it must not include the knowledge of being simulated.
Anyone who studied physics knows about the mysterious observer effect, which disrupts or alters the state of a system or particle only when that system or particle is being observed. The simply act of observing a phenomenon changes the outcome. Mind-blowing when you think about it, but perfectly logical if you accept my hypothesis.
TLDR: You live in a simulated reality. The simulation was created by us (or our ancestors) to remind themselves what it is like to be human. You are being observed by yourself from the future and you don't even realize it - until now.