I don't think anyone with knowledge of emulation (from a research and development side) would say it's impossible. The Cell is a standard PPC core with some well-documented[1] coprocessors.
A more realistic response would be: "computing hardware would not be powerful enough to emulate the PS3 in it's lifetime". We're now two decades out from it's release, and a decade out from it's final phase-out, so it seems that was a fair assessment.
A more realistic response would be: "computing hardware would not be powerful enough to emulate the PS3 in it's lifetime". We're now two decades out from it's release, and a decade out from it's final phase-out, so it seems that was a fair assessment.
1 - https://arcb.csc.ncsu.edu/~mueller/cluster/ps3/SDK3.0/docs/a...