" l’umanità ha perso il suo baricentro morale.
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" l’umanità ha perso il suo baricentro morale.
Si può ancora rimettere in piedi, certo,
ma solo se si torna a guardarsi negli occhi,
a riconoscere nell’altro un volto e non un nemico.
Non servono grandi rivoluzioni,
ma piccoli atti di umanità quotidiana.
Perché la pace non nascerà da un vertice internazionale,
ma dal giorno in cui ciascuno di noi deciderà che la vita,
ogni vita, vale più di qualsiasi profitto."Giovanni Pugliese
Gli ultimi otto messaggi ricevuti dalla Federazione
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@FraEmme concordo in pieno!
Io faccio un lavoro in un posto vicino a casa e con alcune possibilità di libertà che altrove non avrei. Solo per la famiglia e il mio tempo!
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I wonder how many times it's possible to be wrong in sequence about the same thing.
In my last blog post about tilings and finite-state transducers, I mentioned making a mistake about the Ammann-Beenker tiling. I had a description of it in my software, and I had believed it didn't admit a deterministic transducer, because my code reported failure when trying to construct one. But I later found out that it did: my construction algorithm had an overzealous failure detector, and had given up too soon.
But it turns out I was right the first time, if for the wrong reasons. It _doesn't_ admit a transducer after all, because I _also_ got the tiling description slightly wrong!
The Ammann-Beenker rhombus tile is 180° symmetric, but its orientation matters nonetheless (it forms part of the proof of aperiodicity). My description of the tiling had the rhombuses wrongly oriented, in a way that – as it turns out – made the system accidentally simpler.
The first picture here is the Ammann-Beenker analogue of the Penrose 'cartwheel pattern': a singular instance of the tiling, having the symmetry group of a regular octagon _except_ for the dark-coloured tiles, of which the blue ones vary their shape under rotation by some multiple of 45°, and the red ones keep the same shape but change orientation.
The second picture is the same pattern, but generated using my earlier wrong description of the tiling. Because I got some of the rhombus orientations wrong, the red tiles are in much weirder places. _That_ diagram has been puzzling me for a week, until I figured out last night what mistake had caused it!
Oh well, at least I got some pretty pictures out of it.
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Use an unacceptable color
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Wil Eelsing (@wileelsing.bsky.social)
https://bsky.app/profile/wileelsing.bsky.social/post/3m4sddlaupk2y
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NYC mayoral election: Candidates, polls, results and what’s at stake
> The election in the biggest US city has grabbed eyeballs globally. Its verdict could shape US politics.
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@tommi @fraxinas I'm so impressed with your decision to stand by your values. It's incredibly sad that it has come to this, with all the valuable work that you do. 😔
I hope that Framework will finally listen.
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@desideria Ci sta. Ma sto parlando di un'altra cosa.
