The sequences present a convincing case (to me at least) that MWI is the right view of things, and that it is the best conclusion of our understanding of physics.

Just a caution, here. The sequences only really talk about non-relativistic quantum mechanics (NRQM), and I agree that MWI is the best interpretation of this theory. However, NRQM is false, so it doesn't follow that MWI is the "right view of things" in the general sense. Quantum field theory (QFT) is closer to the truth, but there are a number of barriers to a straightforward importation of MWI into the language of QFT. I'm reasonably confident that an MWI-like interpretation of QFT can be constructed, but it does not exist in any rigorous form as of yet (as far as I am aware, at least). You should be aware of this before committing yourself to the claim that MWI is an accurate description of the world, rather than just the best way of conceptualizing the world as described by NRQM.

Quantum field theory (QFT) is closer to the truth, but there are a number of barriers to a straightforward importation of MWI into the language of QFT

This is important if true, and I would like to know more. What are the barriers?

I'm reasonably confident that an MWI-like interpretation of QFT can be constructed, but it does not exist in any rigorous form as of yet

On the other hand, my understanding is that QFT itself doesn't exist in a rigorous form yet, either.

Stupid Questions Open Thread Round 3

by OpenThreadGuy 1 min read7th Jul 2012209 comments

8


From the last thread:

From Costanza's original thread (entire text):

"This is for anyone in the LessWrong community who has made at least some effort to read the sequences and follow along, but is still confused on some point, and is perhaps feeling a bit embarrassed. Here, newbies and not-so-newbies are free to ask very basic but still relevant questions with the understanding that the answers are probably somewhere in the sequences. Similarly, LessWrong tends to presume a rather high threshold for understanding science and technology. Relevant questions in those areas are welcome as well.  Anyone who chooses to respond should respectfully guide the questioner to a helpful resource, and questioners should be appropriately grateful. Good faith should be presumed on both sides, unless and until it is shown to be absent.  If a questioner is not sure whether a question is relevant, ask it, and also ask if it's relevant."

Meta:

  • How often should these be made? I think one every three months is the correct frequency.
  • Costanza made the original thread, but I am OpenThreadGuy. I am therefore not only entitled but required to post this in his stead. But I got his permission anyway.

Meta:

 

  • I still haven't figured out a satisfactory answer to the previous meta question, how often these should be made. It was requested that I make a new one, so I did.
  • I promise I won't quote the entire previous threads from now on. Blockquoting in articles only goes one level deep, anyway.