Tootfinder

Rigid Algebras and Cospans
Leor Neuhauser
https://arxiv.org/abs/2506.22072 https://arxiv.org/pdf/2506.22072

Rigid Algebras and Cospans
We introduce rigid algebras, a generalization of rigid categories to arbitrary symmetric monoidal $(\infty,2)$-categories. We develop their general theory, showing in particular that the a priori $(\infty,2)$-category of rigid algebras is in fact an $(\infty,1)$-category. For the $(\infty,2)$-category of cospans in an $(\infty,1)$-category $\mathcal{C}$, we show that the $(\infty,1)$-category of rigid commutative algebras is canonically identified with $\mathcal{C}$. This identification is used…

Luxembourg's strategic vision for AI seems quite sensible https://innovative-initiatives.public.lu/initiatives/artificial-intelligence-strategic-vision-luxembourg

"The Christian right has its own version of events: Innocent Christian worshippers were mobbed at a city park by anti-Christians and the city endorsed their persecution. But this was not the story they were telling on social media before the protest. In their words, the rally was intended to be a battle in a spiritual war. Against the child “butchers,” the demonic forces, the unholy."
Invading “Antifa-Land” - The Stranger
https://www.thestranger.com/news/2025/05/30/80080084/invading-antifa-land

As the debate over the BBB moves to the Senate, the immediate imperative is to
expose the damage the bill does to millions of Trump’s voters
to benefit his Mar-a-Lago and crypto-wealthy friends.
But it’s also an occasion to shatter the illusion that Trump is some sort of policy innovator.
Extremism and authoritarianism are not new ideas, and his legislative program would be familiar to Calvin Coolidge. 

A New Working-Class GOP? If “Working-Class” Means $4.3 Million a Year!
Last year, Trump won praise for building a new GOP. But the Big, Beautiful Bill utterly shatters the illusion that he is some sort of brilliant policy innovator.

#Worldrecord: 1 million GB per sec #internet speed achieved by #Japan over 1,100 miles

Japan sends 1 million GB of data across 1,100 miles in a second
Current data transfer speeds aren’t enough to support AI, VR, IoT, and various other emerging technologies. Here’s a mindblowing solution.

#idw New Study: Significant Global #Glacier Loss Inevitable
If global temperatures rise by 2.7 degrees Celsius – in line with current #climate policy – only a quarter of the glacier masses will be left. This is the …

New Study: Significant Global Glacier Loss Inevitable

On the Energy Harvesting IUK/KTN Dissemination Event (2017-07) - Innovate UK funding dissemination event hosted by the Knowledge Transfer Network, London. #microgen - https://www.earth.org.uk…

On the Energy Harvesting IUK/KTN Dissemination Event (2017-07)
Innovate UK funding dissemination event hosted by the Knowledge Transfer Network, London. #microgen

Chameleons – Saviours Are A Dangerous Thing
Erste Single aus dem kommenden Album!
https://redirect.invidious.io/watch?v=_wpCUqoV0FY

the year is 2025 there are TWO (2) types of videos on YouTube: adults obsessing over kids movies (8 hour long video essay) & political analysis (30 second infotainment)

2-dimensional TFTs via modular $\infty$-operads
Jan Steinebrunner
https://arxiv.org/abs/2506.22104 https://arxiv.org/pdf/2506.22104…

2-dimensional TFTs via modular $\infty$-operads
This lecture series is based on joint work in progress with Shaul Barkan, as well as work in progress of the author. The five sections of these notes correspond to the five lectures, but more details have been added. $2$-dimensional topological field theories ($2$D TFTs) valued in vector spaces are commutative Frobenius algebras. The goal of this lecture series is to generalize from the $1$-category of vector spaces to any symmetric monoidal $\infty$-category $\mathcal{C}$, i.e. to study symm…