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An example was given of a pair of knots K_1, K_2 in the 3-sphere for which their unknotting numbers satisfy u(K_1\#K_2) < u(K_1) + u(K_2).
And here's a video for you plebs who don't understand1

Footnotes

  1. Just in case anyone gets mad, i'm being sarcastic
Nice to see there's more than 1 knots contributor now
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clickbait 🤠
A Simple Way To Measure Knots Has Come Unraveled #1233660
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another thot actually... did ANYONE notice that the Bitcoin Knots logo has exactly 7 crossings? the flower of life also has 7 circles, repeating over and over in a fractal pattern;
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Spam
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It's not spam if I pay the posting fee 😉
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100 sats \ 0 replies \ @anon 28 Sep
it's spam if you post csam and will be marked as blocked even if you paid to post
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when stacker.knots ????
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It's not fungible if my gratitude has an identification number.
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[useless one-word waste of cowboy credits]2
I stopped using that word after attending enough free educational bullshit in public universities. Now people consider my abuse of free speech spam.
Do I feel welcome in SN yet? Yes, thanks to comments on my bio, rather than zaps on my ramblings.

Footnotes

  1. zero before one
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30 sats \ 1 reply \ @OT 28 Sep
Fake news!
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Everything reported was 100% factual.
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Bravo
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The video is actually pretty interesting haha
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One of my favorite Reddit threads was "which field of mathematics needs to die in a fire", and obviously the best nomination is that one that can be destroyed along with the educational tools and raw materials in a literal fire.
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in an esoteric sense, i conjecture that when someone's neuronal processes are messed up (i.e. backwards, out of order, etc), then joining up with someone who is also messed up in a different yet complementary way will un-knot the combined way of thinking; maybe...
in hermetic principles, the master hermeticist will position himself/herself on the polar opposite of the current situation in order to bring in a balanced order to the universe; that is what Star Wars and other similar allegorical movies were about; in other words, if something is messed up, one shud position himself at the other end of the spectrum in order to un-mess-up the situation;
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i know some gematria, sacred geometry, and the power of musical frequencies... this knottology or nodology is a new one for me, very interesting! occult meanings of knots have to be explored;
the few knots that i know are just a few used in rock-climbing and i do not deviate from the standards - i either know how the knot works or... i don't really want to find out on accident;
now i have to accelerate the review of math and geometry, and really study it from scratch because clearly i missed out on some valuable occult ideas!
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That is one useless obnoxious graphic. Bight evacuation over stretching the topological metaphor, anyday.
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