Try tabooing exist: you might find out that you actually disagree on fewer things than you expect. (I strongly suspect that the only real differences between the four possibilities in this is labels—the way once in a while people come up with new solutions to Einstein’s field equations only to later find out they were just already-known solutions with an unusual coordinate system.)
“Be in this universe”(1) vs “be mathematically possible” should cover most cases, though other times it might not quite match either of those and be much harder to explain.
“This universe” being defined as everything that could interact with the speaker, or with something that could interacted with the speaker, etc. ad infinitum.
Defining ‘existence’ by using ‘interaction’ (or worse yet the possibility of interaction) seems to me to be trying to define something fundamental by using something non-fundamental.
As for “mathematical possibility”, that’s generally not what most people mean by existence—unless Tegmark IV is proven or assumed to be true, I don’t think we can therefore taboo it in this manner...
Defining ‘existence’ by using ‘interaction’ (or worse yet the possibility of interaction) seems to me to be trying to define something fundamental by using something non-fundamental.
I’m not claiming they’re ultimate definitions—after all any definition must be grounded in something else—but at least they disambiguate which meaning is meant, the way “acoustic wave” and “auditory sensation” disambiguate “sound” in the tree-in-a-forest problem. For a real-world example of such a confusion, see this, where people were talking at cross-purposes because by “no explanation exists for X” one meant ‘no explanation for X exists written down anywhere’ and another meant ‘no explanation for X exists in the space of all possible strings’.
As for “mathematical possibility”, that’s generally not what most people mean by existence—unless Tegmark IV is proven or assumed to be true, I don’t think we can therefore taboo it in this manner...
Sentences such as “there exist infinitely many prime numbers” don’t sound that unusual to me.
Try tabooing exist: you might find out that you actually disagree on fewer things than you expect.
That’s way too complicated (and as for tabooing ‘exist’, I’ll believe it when I see it). Here’s what I mean: I see a dog outside right now. One of the things in that dog is a cup or so of urine. I don’t care about that urine at all. Not one tiny little bit. Heck, I don’t even care about that dog, much less all the other dogs, and the urine that is in them. That’s a lot of things! And I don’t care about any of it. I assume Eliezer doesn’t care about the dog urine in that dog either. It would be weird if he did. But it’s in the ‘everything’ bucket, so...I probably misunderstood him?
Try tabooing exist: you might find out that you actually disagree on fewer things than you expect. (I strongly suspect that the only real differences between the four possibilities in this is labels—the way once in a while people come up with new solutions to Einstein’s field equations only to later find out they were just already-known solutions with an unusual coordinate system.)
I’ve not yet found a good way to do that. Do you have one?
“Be in this universe”(1) vs “be mathematically possible” should cover most cases, though other times it might not quite match either of those and be much harder to explain.
“This universe” being defined as everything that could interact with the speaker, or with something that could interacted with the speaker, etc. ad infinitum.
Defining ‘existence’ by using ‘interaction’ (or worse yet the possibility of interaction) seems to me to be trying to define something fundamental by using something non-fundamental.
As for “mathematical possibility”, that’s generally not what most people mean by existence—unless Tegmark IV is proven or assumed to be true, I don’t think we can therefore taboo it in this manner...
I’m not claiming they’re ultimate definitions—after all any definition must be grounded in something else—but at least they disambiguate which meaning is meant, the way “acoustic wave” and “auditory sensation” disambiguate “sound” in the tree-in-a-forest problem. For a real-world example of such a confusion, see this, where people were talking at cross-purposes because by “no explanation exists for X” one meant ‘no explanation for X exists written down anywhere’ and another meant ‘no explanation for X exists in the space of all possible strings’.
Sentences such as “there exist infinitely many prime numbers” don’t sound that unusual to me.
That’s way too complicated (and as for tabooing ‘exist’, I’ll believe it when I see it). Here’s what I mean: I see a dog outside right now. One of the things in that dog is a cup or so of urine. I don’t care about that urine at all. Not one tiny little bit. Heck, I don’t even care about that dog, much less all the other dogs, and the urine that is in them. That’s a lot of things! And I don’t care about any of it. I assume Eliezer doesn’t care about the dog urine in that dog either. It would be weird if he did. But it’s in the ‘everything’ bucket, so...I probably misunderstood him?