Lets say if this reality is simulated inside another upper reality, and a conscious mind somehow ended up in the upper one (thereby confirming : 1-simulated realities exist 2- other realities exist) and then this mind asked the other conscious minds there in the upper reality "how can you be sure that this reality of yours is not simulated as well ?"So what i am proposing is this : EITHER ORa) this reality is the only single oneb) the moment an upper reality (or a lower one if we could invent it in future) is confirmed, its all infinite realities containing/simulating each other, one can never be sure that their reality is the topmost tier
>theory