I thought we found a bug when nobody could agree on what color the dress is.
The knowledge of living in the Matrix doesn’t do shit for me. I still gotta go to work in the morning.
Philosophically, it would be immensely revolutionary, as it implies a kind of personal immortality. If we’re a sim, then we can be stored and then restored and simmed again. It would be very close to a proof of reincarnation.
In practice, the furore would die down pretty quickly, as it became evident we can’t make any practical use of the knowledge. But it would shut down certain lines of philosophical inquiry, and it would make certain varieties of religion wholly untenable.
(Those religions would never acknowledge this, of course, so…very little really changes.)
Quantum mechanics looks like what you might end up with if you built a simulation to a certain granularity, and just filled in the details when it “mattered”.