That's the whole thing. It was in AJP's Q&A section that was sort of like a print version of Quora.
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Replying to @mattmcirvin @johncarlosbaez and
(I don't know where that image came from that is in the thumbnail.)
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Replying to @mattmcirvin @johncarlosbaez and
Anyway, it was a good question, it deserved a good answer.
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Replying to @mattmcirvin @mpoessel and
It's a good question. The answer involving a white hole would be a bit terrifying to most people. By the way, where you around on G+ when Greg Egan, Phil Gibbs and I were discussing the behavior of white holes? I think someone needs to popularize that stuff.
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Replying to @johncarlosbaez @mpoessel and
Yeah, I was in that conversation. Don't know if most of it got saved by anyone (I could only archive my own articles and the comments thereunto).
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Replying to @mattmcirvin @mpoessel and
I think I've got it saved somewhere. I tried to save all "my" stuff... but I haven't bothered to look at it. I have very vague plans to write something with Phil Gibbs about white holes... if we ever do we should talk about them publicly.
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Replying to @johncarlosbaez @mpoessel and
I've had notions of putting together some of my G+ recreational-mathematics material into more coherent articles. My one marginally significant discovery ( https://oeis.org/A225984 ) already got described pretty well in a post by Rich Holmes:https://mathematrec.wordpress.com/tag/mcirvin/
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Replying to @mattmcirvin @johncarlosbaez and
(see also my comments there, which clarify a few things)
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Replying to @mattmcirvin @johncarlosbaez and
I *did* write a series of Dreamwidth blog posts expanding on some stuff I'd done back in G+ days about the Thue-Morse sequence and related subjects (inspired by Owen Maresh's experiments with recursively nested fractions, and stranger beasts): https://mmcirvin.dreamwidth.org/499645.html
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Replying to @mattmcirvin @johncarlosbaez and
For what it's worth: we have some idea how related theta series fit into these: we know they have to do with automatic groups. We know that there are two endomorphisms, one of which is an inclusion, the other kind of blurry. see my answer to:https://math.stackexchange.com/questions/3293507/is-there-a-known-function-defined-by-the-sum-of-x2n/3297876#3297876 …
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This was today: https://arxiv.org/abs/1910.07399 /The Thue-Morse shift, Baumslag-Solitar group, and biminimality/ Laurent Bartholdi
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