I don't know if it was a bot who asked this but I'll answer what I think about it anyway. Could Q be part of "the mirror"? No. How? The simulation has to be well defined and contained, no matter how fucking awesome your algorithm is or if you have a super quantum computer, it has to be defined, it has to operate within a restricted set of rules, it has to be a closed system, this where Q comes in, he/she/it or whatever started this snowball originally, it's outside the system, the simulation can't reach it's starting point because it's beyond it's sphere of influence, therefore it can only do so much before the simulation becomes unreliable.
That's my opinion at least.