This is getting tangental, but isn't objective reality infinity?; the board which your subjective reality plays on?
It may be infinity, it may be nothing, but it's fundamentally inaccessible to us. All we have is our subjective reality, so the assertion that someone has found objective reality is always false and usually used as a means to deny other people's realities.
This is the exact problem. Anyone who thinks they’ve found objective reality isn’t looking hard enough.