Are there any problems with an irreversible ruleset?
Not necessarily, it would just be very different from our world. One potential problem is that it can be easier for an irreversible universe to slip into an inert ‘dead’ state, since information can be globally erased.
There is also no possibility for a Penrose-style return to form due to extremely unlikely random fluctuations over extreme lengths of time.
Are there any problems with an irreversible ruleset?
Not necessarily, it would just be very different from our world. One potential problem is that it can be easier for an irreversible universe to slip into an inert ‘dead’ state, since information can be globally erased.
There is also no possibility for a Penrose-style return to form due to extremely unlikely random fluctuations over extreme lengths of time.