= 27d567bc2d48d9f40e9ccc20ea370b15)
MinibearRex comments on [SEQ RERUN] Reductionism - Less Wrong Discussion
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 (21)
Are you saying that such a task would be prohibitively difficult, and presumably not something that is worth the effort, or are you saying that doing this is impossible in principle?
I don't think the renormalization group flow has anything to do with the topic, honestly.
It looked to me like the entire original post was about how you couldn't use lower level laws to extrapolate higher level laws. Renormalization is the only way I know of to do this. Additionally, every comment in this direct thread is about renormalization. I think renormalization is the topic.
Renormalization is a very specific technique, mostly used in HEP, to work around the infinities cropping up into the calculations. It does not let you predict anything about a lower-energy model from the higher-energy one, only to replace "bare" quantities with the renormalized ones.