Hmm, is this author related to the Physics for the Birds YouTube channel?
That channel just released a video on the same topic.
That channel just released a video on the same topic.
The video takes a slightly different approach from the paper and uses a retraction on the möbius strip to its boundary as a contradiction.
That particular argument doesn’t generalize as well in higher dimensions (in particular, the symmetric product won't always have a boundary to retract to), so I followed the original paper’s one instead. I'll add a link to that video as well
> (we’ll take a slightly different approach).