Warsaw

WT*?

Don’t be so impatient. All will be explained, in due time. In fact, time, and associations in space and time, is what this posting is all about.

Firstly, the *image* is the album art of the eponymous Joy Division album [I so love using the word “eponymous”!]. If you really do want to listen to it, here’s a YouTube link: https://www.youtube.com/watch?v=3UYnyiL8-VI

I warn you, it’s not everyone’s cup of tea.

Secondly, I have to tell you that last Monday I gave a Zoom talk at the dept. of physics at the Jagellionian University, Kraków; in a seminar series, hosted by my friend Jarek Duda. The announcement said that the talk (on quantum foundations, and in particular on the issues of time in Bell’s theorem) would start at 17:00 hours Warsaw time and for some days I was under the misapprehension that I would give (and later, had given) a virtual talk in Warsaw. Kraków, Warsaw, … I have wonderful memories of a number of fascinating Polish cities.

While preparing my slides I belatedly learnt that two or three months previously Boris Tsirelson (Tel Aviv) , one of my greatest scientific heros, had passed away in Basel, aged 70. One year older than me. (His family originally came from Bessarabia – nowadays more of less Moldavia. More holocaust connections here). Boris’ whole approach to Bell’s theorem, and not just his famous inequality (the “Tsirelson bound”), had always deeply resonated with me. I felt devastated, but also inspired.

Actually when I was asked if I would like to make a contribution to the J U Kraków seminar, the provisional title of my talk, and its initial “abstract”, referred to “Bell-denialists”. Of course I was thinking of one of my current Bell-denialist friends (recently referred to as my “nemesis” by another one of my friends, but I think of him more as an inspiring sparring partner) Joy Christian. So there comes the word “Joy” again. Those who are not fans of English post-punk of the late 70’s and early 80’s might like to confer with Wikipedia, to find out what historical organisation was alluded to in the name of the band https://en.wikipedia.org/wiki/Joy_Division. The lead singer, Ian Curtis, famously committed suicide at the very young age (for suicidal rock stars) of 23. He certainly was a “troubled young man” … . See the very beautiful movie “Control” directed by the Dutch photographer Anton Corbijn https://en.wikipedia.org/wiki/Control_(2007_film).

Coincidentally, today I saw the announcement of a new paper by my quantum friend Sascha Vongehr, “Many Worlds/minds Ethics and Argument Against Suicide: for Emergencies and Evaluation in Long Term Suicide Prevention and Mental Health Outcome”, on viXra, https://vixra.org/abs/2004.0158. There are actually some very fine papers on viXra!

But I digress, as is my wont. Here are the slides of my Kraków talk, and of a sequel (next Monday, 17:00 hours, Warsaw time!) https://www.math.leidenuniv.nl/~gill/Warsaw.pdf, https://www.math.leidenuniv.nl/~gill/Warsaw2.pdf [Moved to Tuesday in connection with Easter].

Perhaps, but maybe that will be on another day, and maybe even another posting, I will explain what my talks finally decided to be about.

In the meantime, thinking of requiems and Warsaw made me think of a piece by one of my favourite composers Alfred Schnittke, dedicated to the memory of the victims of the bombing of Belgrade by the nazi’s. I will add a link to a suitable YouTube performance, if I can find it. If this piece of music indeed exists anywhere, apart from in my mind. Google search is not giving me any help. I have to locate my CD collection…

Ah, it was “Ritual”. https://www.youtube.com/watch?v=rdnmWXkfR3E

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