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Mark C

@largecardinal.bsky.social
1.5K followers 229 following 223 posts

Logician (PhD), Quantum Hacker, ML miscreant. Feral academic. Co-founder of Quantum Village @ DEF CON

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Mark C @largecardinal.bsky.social · 09/09/2026
Thoughts and prayers to CFD folks today... Source: r/CFD
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Mark C @largecardinal.bsky.social · 17/08/2026
Current status of Simon's dihedral coset algorithm for LWE...
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Mark C @largecardinal.bsky.social · 25/07/2026
Answer in response to "why do quantum computing companies keep releasing simulators?"
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Mark C @largecardinal.bsky.social · 14/06/2026
Actual footage of the Anthropic situation rn...
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Mark C @largecardinal.bsky.social · 09/06/2026
Watching people in a safe university bubble talk about technologies in the 'real world'...
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Mark C @largecardinal.bsky.social · 04/11/2025
Was this inspired by a monoidal category, or something? www.bbc.com/news/article...
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Mark C @largecardinal.bsky.social · 24/10/2025
This is the funniest thing I've seen just before having to take my ibuprofen...
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Mark C @largecardinal.bsky.social · 10/04/2025
What in the millennial melancholy noughties nostalgia nut-fest is going on?
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Mark C @largecardinal.bsky.social · 18/03/2025
Fun Fact for the day - with Google and CloudFlare pushing hybrid post-quantum key exchange by default, and with chrome and Firefox supporting it by default since December, around 1/3 of the total traffic we are analysing w/CryptoMon from regular operations is now PQC secured by default! 🚀
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Mark C @largecardinal.bsky.social · 10/02/2025
@bloomberg.com "we provide the most accurate and relevant, up to date news and information to capital markets across the globe..." Also Bloomberg: 🍆🍄
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Mark C @largecardinal.bsky.social · 07/02/2025
There's even a nifty mapping from qubits to symbits 👍
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Mark C @largecardinal.bsky.social · 07/02/2025
Gazing into a crystal ball, this maths could be very useful. A quaternionic take on the qubit, the symplectic bit or 'symbit' has some very nifty properties, mostly arising from the fact that U(N) is a subgroup of the symplectic group Sp(2N, R).
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Mark C @largecardinal.bsky.social · 25/12/2024
Mathematician giving a lecture: "So you see, a C*-algebra is just a Banach algebra that is also a closed *-subalgebra of the algebra of bounded operators on some given Hilbert space..." Physicists in the lecture:
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Mark C @largecardinal.bsky.social · 23/12/2024
The real story, however...
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Mark C @largecardinal.bsky.social · 14/12/2024
We caught the Methane Mambo!
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Mark C @largecardinal.bsky.social · 11/12/2024
Google: puts out dramatic headline about quantum Investors and physicists (for different reasons):
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Mark C @largecardinal.bsky.social · 06/12/2024
Chinese Quantum Supremacy dawning be like... english.cas.cn/newsroom/cas...
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Mark C @largecardinal.bsky.social · 22/11/2024
Quite possibly the most 'City of London' thing I've read on the internet in quite some time...
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Mark C @largecardinal.bsky.social · 21/11/2024
"This could be you if you got straight to the point..."
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Mark C @largecardinal.bsky.social · 16/11/2024
Always impressed by the malleability of branding to appropriate whatever will make money next...
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Mark C @largecardinal.bsky.social · 12/10/2024
I laughed altogether far too much at this...
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Mark C @largecardinal.bsky.social · 29/01/2024
Troof
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Mark C @largecardinal.bsky.social · 20/11/2023
Actual footage of Satya Nadella acquiring OpenAI for $0 and bypassing the SEC...
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Mark C @largecardinal.bsky.social · 18/09/2023
This is a fascinating study... What happens when Knowledge workers get access to LLMs? Well, it improves productivity AND quality, it seems. This will be a very interesting jumping off point for more work on this, I would hope... papers.ssrn.com/sol3/papers.cfm?abs…
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Mark C @largecardinal.bsky.social · 13/09/2023
Time to explore Betteridge's Law of Headlines concerning the quantum internet with Kian Van Der Enden, at @Ri_Science this evening...
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Mark C @largecardinal.bsky.social · 05/09/2023
Put this in your threat model and burn it... (Source: www.reddit.com/r/Britain/comments/1…)
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Mark C @largecardinal.bsky.social · 20/08/2023
NYC doesn't fuck about...
Advertising banner for secure storage reading "safe, secure, protected, with minimal charges just like Prince Andrew"
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Mark C @largecardinal.bsky.social · 15/08/2023
Been a while since I did an academic conf poster. Went down alright, though... Experimentalists were rather perturbed.
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Mark C @largecardinal.bsky.social · 24/07/2023
Time to put quantum where it has never been simulated before...
Disassembled stylophone with a microcontroller and multimeter
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Mark C @largecardinal.bsky.social · 07/07/2023
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Mark C @largecardinal.bsky.social · 02/07/2023
This was less than 24hrs ago, and still buzzing. Superb conference - if you haven't been, Le Hack in Paris is a blast!
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Mark C @largecardinal.bsky.social · 02/07/2023
Twitter users looking on at new bluesky users who made it over before the registration freeze...
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