The idea that the utility should be continuous is mathematically equivalent to the idea that an infinitesimal change on the discomfort/pain scale should give an infinitesimal change in utility. If you don’t use that axiom to derive your utility funciton, you can have sharp jumps at arbitrary pain thresholds. That’s perfectly OK—but then you have to choose where the jumps are.
I think that’s probably more practical than trying to make it continuous, considering that our nervous systems are incapable of perceiving infinitesimal changes.
Yes, we are running on corrupted hardware at about
100 Hz, and I agree that defining broad categories to make first-cut decisions is necessary.
But if we were designing a morality program for a super-intelligent AI, we would want to be as mathematically consistent as possible. As shminux implies, we can construct pathological situations that exploit the particular choice of discontinuities to yield unwanted or inconsistent results.
It could be worse than that: there might not be a way to choose the jumps consistently, say, to include different kinds of discomfort, some related to physical pain and others not (tickling? itching? anguish? ennui?)
The idea that the utility should be continuous is mathematically equivalent to the idea that an infinitesimal change on the discomfort/pain scale should give an infinitesimal change in utility. If you don’t use that axiom to derive your utility funciton, you can have sharp jumps at arbitrary pain thresholds. That’s perfectly OK—but then you have to choose where the jumps are.
I think that’s probably more practical than trying to make it continuous, considering that our nervous systems are incapable of perceiving infinitesimal changes.
Yes, we are running on corrupted hardware at about 100 Hz, and I agree that defining broad categories to make first-cut decisions is necessary.
But if we were designing a morality program for a super-intelligent AI, we would want to be as mathematically consistent as possible. As shminux implies, we can construct pathological situations that exploit the particular choice of discontinuities to yield unwanted or inconsistent results.
It could be worse than that: there might not be a way to choose the jumps consistently, say, to include different kinds of discomfort, some related to physical pain and others not (tickling? itching? anguish? ennui?)