= 27d567bc2d48d9f40e9ccc20ea370b15)
shminux comments on Infinite Certainty - Less Wrong
You are viewing a comment permalink. View the original post to see all comments and the full post content.
= 783df68a0f980790206b9ea87794c5b6)
Loading…= b715d02e85f7b3b4ae65ca3d3e450868)
Subscribe to RSS Feed
Powered by Reddit
= f037147d6e6c911a85753b9abdedda8d)
You are viewing a comment permalink. View the original post to see all comments and the full post content.
Comments (114)
Is "exist" even a meaningful term? My probability on that is highish but no where near unity.
My attempts to taboo "exist" led me to instrumentalism, so beware.
Is instrumentalism such a bad thing, though? It seems like instrumentalism is a better generalization of Bayesian reasoning than scientific realism, and it approaches scientific realism asymptotically as your prior for "something exists" approaches 1. (Then again, I may have been thoroughly corrupted in my youth by the works of Robert Wilson).
If you take instrumentalism seriously, then you remove external "reality" as meaningless, and only talk about inputs (and maybe outputs) and models. Basically in this diagram
from Update then Forget you remove the top row of W's, leaving dangling arrows where "objective reality" used to be. This is not very aesthetically satisfactory, since the W's link current actions to future observations, and without them the causality is not apparent or even necessary. This is not necessarily a bad thing, if you take care to avoid the known AIXI pitfalls of wireheading and anvil dropping. But this is certainly not one of the more popular ontologies.