Janeite STEMbro, relapsing mathematician, nervous mountaineer, abundance-pilled environmentalist. Fan of compilers, love/hate relationship with build systems.
Posts
Tony Head was of course great in Buffy, but he was also *wonderful* as the vain, snobbish, spendthrift Sir Walter Elliot in the 2007 *Persuasion* movie. RIP.
@pigworker@types.pl @johncarlosbaez@mathstodon.xyz
I learned that the free monad construction, which iterates any container to give you a term monad, is itself a monad on containers,
Makes sense - "free" things are usually left adjoint functors, and "forgetful . free" gives a monad.
and that its Kleisli arrows determine a class of recursive functions over tree-like data.
Wait, what? A Kleisli arrow would be a natural transformation f -> Free g where f and g are endofunctors; how does that give you a recursive function? Co-Kleisli arrows, sure...
Moreover, if someone offers to let you test such a function but withholds the Kleisli arrow which generated it, you can recover their secret by a pleasingly small amount of perturbation testing.
SORCERY
@bornach@vis.social @johncarlosbaez@mathstodon.xyz two literary ones:
- there's a Spanish equivalent of Shakespeare and I've never heard of him before today: https://mathstodon.xyz/@mjd/116532678297823850
- Ann Radcliffe's "The Mysteries of Udolpho", the book parodied by Jane Austen's "Northanger Abbey", has been continuously in print since 1794 and made Radcliffe £500. That's almost as much as Austen's total lifetime earnings of £684.
Another thing along these lines: Brits, even amongst ourselves, now often say "Rube Goldberg" instead of "Heath Robinson". Now, Brits have been complaining, usually incorrectly, about "Americanisms" since roughly the 5th of July 1776, but this one in particular makes me sad, because Heath Robinson was a much better artist. I mean, look at this stuff: https://www.heathrobinsonmuseum.org/william-heath-robinson/
RE: @rolenthedeep@rattodon.nexus
"I've managed Microsoft programmers, how hard can geese be?"
*one month later*
"Oh no"
With the most extreme gravity anomaly in the ocean right off Arthur C Clarke's old stomping ground of Sri Lanka. COINCIDENCE!?