Hmmm... instead of using "wallfacers", what if a "3-body problem" civilisation decided to use AI to simulate the digital exhaust of 18446744073709551615 other c

Hmmm... instead of using "wallfacers", what if a "3-body problem" civilisation decided to use AI to simulate the digital exhaust of 18446744073709551615 other civilisations at a similar tech level, having somehow arranged to feed them all into the surveillance pipes surveying their own?