Mark C.

@Unprovable
671 Followers
281 Following
268 Posts
Researcher/Consultant in security and more. Jazz thinker w/out portfolio. Looks at ML, web3, and quantum - within and without cybersecurity. Started BSides Leeds, now helping with Quantum Village @ DEF CON
Mark C.May 21
Greg EganMay 21

Trying to brush up on my field theory to understand the counterexamples to the Erdős unit distance problem has made my inner dialogue sound like …

“totally real!”
“totally imaginary!”
“totally ramified!”

Mark C.May 21

RE: https://mathstodon.xyz/@gregeganSF/116611684153322775

I'd love to see the survivorship stats on this... How many one shot maths conjecture runs came up with utter tosh vs. this one big win?

Mark C.May 21
Show threadGro-TsenMay 21
Oh wait, there's a graph on their announcement post. Is the y axis the probability of solving the problem successfully in a given run? The fact that there's absolutely no label on the x axis is a bit of a downer. Also, we'd very much like to know if all the runs produced “isomorphic” solutions.
Mark C.May 7
LobstersMay 5
Inexpressibility in Exp-Minus-Log https://lobste.rs/s/hmunw6 #math
https://arxiv.org/abs/2605.01636
Inexpressibility in Exp-Minus-Log

0 comments

Lobsters
Mark C.May 7

RE: https://mastodon.social/@lobsters/116520734629082281

This was fun to do... Fun fact; the substitutions for x*y, -x, and x^{-1} are minimal (by exhaustive search).

Mark C.Apr 24

Tired; use poetry to hack your AI...
Wired; bad bard.

https://www.forbes.com/sites/lanceeliot/2026/04/23/how-poetry-is-diabolically-being-used-in-everyday-prompts-to-get-ai-to-do-things-it-isnt-supposed-to-do/

How Poetry Is Diabolically Being Used In Everyday Prompts To Get AI To Do Things It Isn’t Supposed To Do

Hackers and evildoers are using adversarial poetry to jailbreak AI. The trick involves writing poems as prompts. AI safeguards can be averted. An AI Insider scoop.

Forbes
Mark C.Apr 24

This just in - your adversary is PQC!!

https://arstechnica.com/security/2026/04/now-even-ransomware-is-using-post-quantum-cryptography/

In a first, a ransomware family is confirmed to be quantum-safe

Technically speaking, there's no practical benefit to use PQC. So why is it being used?

Ars Technica
Mark C.Apr 15
Opening a lecture on Intro to Graph Theory: "Euler was the first to connect the dots..."
Show threadMark C.Apr 14

By building it yourself, users can learn how a photonic delay line (in this case, 5 meters of fiber optic cable) allows pulses to interact and create measurable quantum randomness.
Stay tuned for some fun use cases with our collaborators.

If you want to get into photonics - you can now see the light!

Show threadMark C.Apr 14
The project serves as a hands-on educational demonstration which can be implemented today.