Heh, i wonder what the mean free space between blackholes is? Now, given that in quadrillions of quadrillions of years all black holes will evaporate and poten

Heh, i wonder what the mean free space between blackholes is? Now, given that in quadrillions of quadrillions of years all black holes will evaporate and potentially even protons decay there could be a time in the universe where everything is mass less radiation.