Assuming our simulation is not designed to auto-scale (and our Admins don’t know how to download more RAM), what kind of side effects could we see in the world if the underlying system hosting our simulation began running out of resources?
That would only be a problem if you need dynamically allocated memory. It could be a statically allocated simulation where every atom is accounted for.
If our entire universe is a simulation so are our laws of physics, in the parent universe running our simulation the universe might be powered by pure imagination and the concept of memory or CPU cycles or even electricity might not even exist
This is why older people think slower and lose memories or cognitive functions as side effects. They are depriorizized and moved from ram to pagefiles/swap disk.
If you’re unfamiliar, the OS will move process memory onto disk when RAM runs out.