Cazzandro @KodeGhinn@qoto.org
Spheniscida
Joined Apr 2022
Cazzandro
boosted
Applied Category Theory course by @johncarlosbaez:
https://math.ucr.edu/home/baez/act_course/index.html
Very short, self-contained lessons, great for casual reading with concrete applications!
Cazzandro
boosted
“Settled science”
Anthropology has apparently lost the ability to discern the difference between male & female skeletons. 😩
“There is no single biological standard by which all humans can be reliably sorted into a binary male/female sex classification.”
Academia is broken.
Nature crisis: One in six #species at risk of #extinction in #GreatBritain
Scientists get closer to solving mystery of #antimatter #gravity #cern
@phastidio niente di che mi riferivo a passaggi tipo “Ignorerò le solite accuse di disfattismo perché hanno un po’ stancato” ma niente paura l’articolo ci azzecca alla grande
@phastidio bell’articolo. Anche se sul vittimismo c’è caduto un pochino pure lei
@SnoopJ @dpiponi in bash is quite slick also https://linuxize.com/post/bash-sequence-expression/
Cazzandro
boosted
Today at 3 pm UK time I'm giving a quick intro to n-categories. You can join us online here:
https://ed-ac-uk.zoom.us/j/82270325098
Meeting ID: 822 7032 5098
Passcode: XXXXXX36
Here the X’s stand for the name of that famous lemma in category theory.
With luck I'll be able to put my talk on YouTube later.
Here's what I'll explain:
An n-category is a gadget with objects, morphisms between objects, 2-morphisms between morphisms, and so on up to n-morphisms. The 'periodic table of n-categories' shows the pattern you get if you look at (n+k)-categories that are boring at the bottom k levels, with just one object, one morphism, and so on for a while. You can think of these as n-categories with k ways to multiply objects. The Stabilization Hypothesis claims that once k reaches n+2, increasing it more has no effect!
Cazzandro
boosted
I'm giving a public talk next week:
• Life's struggle to survive. Tuesday September 26, 6 pm UK time. Room G.03 on the ground floor of the Bayes Centre, 47 Potterrow, Edinburgh.
When pondering our future amid global warming, it is worth remembering how we got here. Even after it got started, the success of life on Earth was not a foregone conclusion! In this talk I recount some thrilling, chilling episodes from the history of our planet. For example: our collision with the planet Theia, the "snowball Earth events" when most of the oceans froze over, and the asteroid impact that ended the age of dinosaurs. Some are well-documented, others only theorized, but pondering them may give us some optimism about the ability of life to survive crises.
To attend in person, get a free ticket here: https://www.eventbrite.co.uk/e/lifes-struggle-to-survive-leverhulme-lecture-tickets-707700620607
Refreshments will be served after the lecture. If you actually show up, say hi!
If you can't join us, fear not: I should be able to put a recording of the talk on my YouTube channel eventually. And you can see the slides here now:
http://math.ucr.edu/home/baez/struggle/
If you find mistakes in them or just have questions, please let me know! I'm still polishing the slides - and the more questions I field now, the more prepared I'll be when it comes time to give the actual talk.
@johndcook @dpiponi why nlogn?
Cazzandro
boosted
A few weeks ago I made up a "fake prime function" to illustrate that a certain property wasn't really a property specific to primes. I notice @johndcook wrote about it a couple of times
https://www.johndcook.com/blog/2023/08/21/fake-primes/
https://mathstodon.xyz/@johndcook/110927666845223894
In the back of my mind was Cramer's "model" of the primes although I was interested in different statistical properties https://terrytao.wordpress.com/tag/cramers-random-model/
@burgerdrome is your tv actually connected to the internet?
Scientists grow whole model of #humanembryo, without sperm or egg #stemcells
@phastidio “Dittatura e religione fanno l’orgia sul balcone” - Litfiba
