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← The hard part of verification is not proving the code correct but working out what the specification should say.
17 connected korrents · 12 moments from 21 Jan 2019 to 12 Sept 2026.
Everything filed under formal proof
formal proof
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America
Everything filed under code generation
code generation
Everything filed under mathematics
mathematics
Everything filed under software quality
software quality Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Same subject Read this korrent: The hard part of verification is not proving the code correct but working out what the specification should say. The hard part of verification is not proving the code correct but working out what the specification should say. Last stated 8 years ago
21 Jan 2019
HW
Hillel Wayne — holds since 2019-01-21 — tap for who they are
Same subject: There is a permanent trade-off in verification: an expressive language is hard to prove things about, and a language that is easy to prove things about is hard to write in. — tap to centre the map on it There is a permanent trade-off in verification: an expressive language is hard to prove things about, and a language that is easy to prove things about is hard to write in. Last stated 8 years ago
21 Jan 2019
HW
Hillel Wayne — holds since 2019-01-21 — tap for who they are
Same subject: Formal methods are not standard practice even in high-assurance software such as medical devices and aircraft. — tap to centre the map on it Formal methods are not standard practice even in high-assurance software such as medical devices and aircraft. Last stated 8 years ago
21 Jan 2019
HW
Hillel Wayne — holds since 2019-01-21 — tap for who they are
Same subject: Formalisation's real gift is the green check mark — knowing a hard proof is correct before you spend time on it — and every other field would kill for it. — tap to centre the map on it Formalisation's real gift is the green check mark — knowing a hard proof is correct before you spend time on it — and every other field would kill for it. Last stated 4 months ago
30 Jun 2026
GS
Grant Sanderson — holds since 2026-06-30 — tap for who they are
Same subject: Formal verification is about to become economical, because models are getting good enough at writing the proofs that humans no longer have to. — tap to centre the map on it Formal verification is about to become economical, because models are getting good enough at writing the proofs that humans no longer have to. Last stated 6 months ago
22 Apr 2026
MK
Martin Kleppmann — holds since 2026-04-22 — tap for who they are
Same subject: Software is not less rigorous than traditional engineering; its record-keeping and automated verification are better than most of that field's. — tap to centre the map on it Software is not less rigorous than traditional engineering; its record-keeping and automated verification are better than most of that field's. Last stated 6 years ago
20 Jan 2021
HW
Hillel Wayne — holds since 2021-01-20 — tap for who they are
Same subject: Engineers are sceptical of formal methods because they were burned by CASE and UML, sold as miracle solutions and imposed on them regardless of fit. — tap to centre the map on it Engineers are sceptical of formal methods because they were burned by CASE and UML, sold as miracle solutions and imposed on them regardless of fit. Last stated 3 months ago
29 Jul 2026
HW
Hillel Wayne — holds since 2026-07-29 — tap for who they are
Same subject: Formal methods are not used everywhere because for most real problems writing down what the function should do is itself a nightmare, and a program that is right ninety-nine per cent of the time is good enough. — tap to centre the map on it Formal methods are not used everywhere because for most real problems writing down what the function should do is itself a nightmare, and a program that is right ninety-nine per cent of the time is good enough. Last stated 3 months ago
29 Jul 2026
HW
Hillel Wayne — holds since 2026-07-29 — tap for who they are
Same subject: Full formal verification is a waste of money for most software: near-perfect is reachable with ordinary techniques at a fraction of the cost. — tap to centre the map on it Full formal verification is a waste of money for most software: near-perfect is reachable with ordinary techniques at a fraction of the cost. Last stated 8 years ago
21 Jan 2019
HW
Hillel Wayne — holds since 2019-01-21 — tap for who they are
Same subject: A persistently rising dividend yield eventually forces capital appreciation as the market rerates the stock. — tap to centre the map on it A persistently rising dividend yield eventually forces capital appreciation as the market rerates the stock. Last stated 8 months ago
3 Mar 2026
SB
Sanjay Bakshi — holds since 2026-03-03 — tap for who they are
Same subject: A proof and an explanation are different things, and a theorem can stay an unsolved expository problem long after it is proved. — tap to centre the map on it A proof and an explanation are different things, and a theorem can stay an unsolved expository problem long after it is proved. Last stated 4 months ago
30 Jun 2026
GS
Grant Sanderson — holds since 2026-06-30 — tap for who they are
Same subject: A stream of AI-written papers with any error rate at all becomes insufferable, because finding the error costs more than the paper is worth even at ninety-nine percent. — tap to centre the map on it A stream of AI-written papers with any error rate at all becomes insufferable, because finding the error costs more than the paper is worth even at ninety-nine percent. Last stated 4 months ago
30 Jun 2026
GS
Grant Sanderson — holds since 2026-06-30 — tap for who they are
Same subject: A model can now port essentially any codebase from one programming language to another, work that used to take a team over a year. — tap to centre the map on it A model can now port essentially any codebase from one programming language to another, work that used to take a team over a year. Last stated 3 months ago
27 Jul 2026
BC
Boris Cherny — holds since 2026-07-27 — tap for who they are
Same subject: Agents are the new compilers that compile intent into fast software. — tap to centre the map on it Agents are the new compilers that compile intent into fast software. Last stated a month ago
12 Sept 2026
GR
Guillermo Rauch — holds since 2026-09-12 — tap for who they are
Same subject: AI acceleration threatens 'less software': without the constraint of scarce hours, even 37signals will likely build too much. — tap to centre the map on it AI acceleration threatens 'less software': without the constraint of scarce hours, even 37signals will likely build too much. Last stated 3 months ago
26 Jul 2026
DH
David Heinemeier Hansson — holds since 2026-07-26 — tap for who they are
Same subject: America stopped building reactors because Three Mile Island was mismanaged as a public-relations event, not because anyone was harmed by it. — tap to centre the map on it America stopped building reactors because Three Mile Island was mismanaged as a public-relations event, not because anyone was harmed by it. Last stated 2 months ago
15 Aug 2026
IT
Isaiah Taylor — holds since 2026-08-15 — tap for who they are
Same subject: American manufacturing output cannot meaningfully rise without first building large amounts of new electricity generation. — tap to centre the map on it American manufacturing output cannot meaningfully rise without first building large amounts of new electricity generation. Last stated 2 years ago
6 Apr 2025
MH
Molson Hart — holds since 2025-04-06 — tap for who they are
Same subject: Americans have repeatedly overreacted drastically to real problems like DDT, Y2K, and nuclear power, swept up in fear after one vivid incident. — tap to centre the map on it Americans have repeatedly overreacted drastically to real problems like DDT, Y2K, and nuclear power, swept up in fear after one vivid incident. Last stated 2 months ago
1 Sept 2026
TC
Tyler Cowen — holds since 2026-09-01 — tap for who they are
At the centre
The hard part of verification is not proving the code correct but working out what the specification should say.
Holds Read this korrent →
There is a permanent trade-off in verification: an expressive language is hard to prove things about, and a language that is easy to prove things about is hard to write in.
Holds
Formal methods are not standard practice even in high-assurance software such as medical devices and aircraft.
Holds
Formalisation's real gift is the green check mark — knowing a hard proof is correct before you spend time on it — and every other field would kill for it.
Holds
Formal verification is about to become economical, because models are getting good enough at writing the proofs that humans no longer have to.
Holds
Software is not less rigorous than traditional engineering; its record-keeping and automated verification are better than most of that field's.
Holds
Engineers are sceptical of formal methods because they were burned by CASE and UML, sold as miracle solutions and imposed on them regardless of fit.
Holds
Formal methods are not used everywhere because for most real problems writing down what the function should do is itself a nightmare, and a program that is right ninety-nine per cent of the time is good enough.
Holds
Full formal verification is a waste of money for most software: near-perfect is reachable with ordinary techniques at a fraction of the cost.
Holds
A persistently rising dividend yield eventually forces capital appreciation as the market rerates the stock.
Holds
A proof and an explanation are different things, and a theorem can stay an unsolved expository problem long after it is proved.
Holds
A stream of AI-written papers with any error rate at all becomes insufferable, because finding the error costs more than the paper is worth even at ninety-nine percent.
Holds
A model can now port essentially any codebase from one programming language to another, work that used to take a team over a year.
Holds
Agents are the new compilers that compile intent into fast software.
Holds
AI acceleration threatens 'less software': without the constraint of scarce hours, even 37signals will likely build too much.
Holds
America stopped building reactors because Three Mile Island was mismanaged as a public-relations event, not because anyone was harmed by it.
Holds
American manufacturing output cannot meaningfully rise without first building large amounts of new electricity generation.
Holds
Americans have repeatedly overreacted drastically to real problems like DDT, Y2K, and nuclear power, swept up in fear after one vivid incident.
Holds