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← Review, testing and QA is the new bottleneck in software engineering.
17 connected korrents · 15 moments on record from 7 Nov 2014 to 8 Sept 2026.
Everything filed under software quality
software quality
Everything filed under Python
Python
Everything filed under TypeScript
TypeScript
Everything filed under coding agents
coding agents
Everything filed under developer tools
developer tools
Everything filed under design
design 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: Review, testing and QA is the new bottleneck in software engineering. Review, testing and QA is the new bottleneck in software engineering. Last stated today
8 Sept 2026
GR
Guillermo Rauch — holds since 2026-09-08 — tap for who they are
Same subject: Review became a worse bottleneck under AI, because companies removed the review automation they had once AI started writing the code. — tap to centre the map on it Review became a worse bottleneck under AI, because companies removed the review automation they had once AI started writing the code. Last stated 6 months ago
22 Mar 2026
NF
Nicole Forsgren — holds since 2026-03-22 — tap for who they are
Same subject: AI did not create the bottlenecks in software delivery; it threw gas on processes everybody already knew were weak. — tap to centre the map on it AI did not create the bottlenecks in software delivery; it threw gas on processes everybody already knew were weak. Last stated 6 months ago
22 Mar 2026
NF
Nicole Forsgren — holds since 2026-03-22 — tap for who they are
Same subject: The human bottleneck is a safety property: remove it and small, individually harmless coding errors compound at a rate nobody feels until it is too late. — tap to centre the map on it The human bottleneck is a safety property: remove it and small, individually harmless coding errors compound at a rate nobody feels until it is too late. Last stated 5 months ago
25 Mar 2026
MZ
Mario Zechner — holds since 2026-03-25 — tap for who they are
Same subject: For an experienced programmer the bottleneck is usually not thinking but typing, getting what is already in your head into the editor fast enough. — tap to centre the map on it For an experienced programmer the bottleneck is usually not thinking but typing, getting what is already in your head into the editor fast enough. Last stated a year ago
22 Mar 2025
TH
ThePrimeagen — holds since 2025-03-22 — tap for who they are
Same subject: AI has moved the programmer's bottleneck from writing code to having good design ideas, and there is no verification loop for a design idea. — tap to centre the map on it AI has moved the programmer's bottleneck from writing code to having good design ideas, and there is no verification loop for a design idea. Last stated 5 months ago
7 Apr 2026
MN
Michael Nielsen — holds since 2026-04-07 — 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: Most organisations are bottlenecked on ideas, vision and taste rather than on implementation, so making code cheap does not make them productive. — tap to centre the map on it Most organisations are bottlenecked on ideas, vision and taste rather than on implementation, so making code cheap does not make them productive. Last stated 2 weeks ago
26 Aug 2026
DH
David Heinemeier Hansson — holds since 2026-08-26 — tap for who they are
Same subject: The real bottleneck in product work is discovering a solution worth building, not building it. — tap to centre the map on it The real bottleneck in product work is discovering a solution worth building, not building it. Last stated 5 months ago
16 Apr 2026
MC
Marty Cagan — holds since 2026-04-16 — tap for who they are
Same subject: A language-agnostic conformance suite is the most powerful thing you can hand a coding agent, because the whole instruction becomes: write code until these tests pass. — tap to centre the map on it A language-agnostic conformance suite is the most powerful thing you can hand a coding agent, because the whole instruction becomes: write code until these tests pass. Last stated 6 months ago
19 Mar 2026
SW
Simon Willison — holds since 2026-03-19 — tap for who they are
Same subject: A passing test suite is not evidence that the software works, so an agent must also be made to start the thing and exercise it the way a person would. — tap to centre the map on it A passing test suite is not evidence that the software works, so an agent must also be made to start the thing and exercise it the way a person would. Last stated 6 months ago
19 Mar 2026
SW
Simon Willison — holds since 2026-03-19 — tap for who they are
Same subject: Adding a config option so nobody breaks compounds into permutations no test suite can cover, because it is infinitely harder to evolve software that has users. — tap to centre the map on it Adding a config option so nobody breaks compounds into permutations no test suite can cover, because it is infinitely harder to evolve software that has users. Last stated 4 weeks ago
10 Aug 2026
PS
Peter Steinberger — holds since 2026-08-10 — tap for who they are
Same subject: Astra writes weird Python slop when one step removed from normal code, and its unit tests are horrific. — tap to centre the map on it Astra writes weird Python slop when one step removed from normal code, and its unit tests are horrific. Last stated 2 days ago
6 Sept 2026
AR
Armin Ronacher — holds since 2026-09-06 — tap for who they are
Same subject: A language can keep changing without a Python-2-to-3 break, as long as code written under the old and the new rules can be mixed freely in one program. — tap to centre the map on it A language can keep changing without a Python-2-to-3 break, as long as code written under the old and the new rules can be mixed freely in one program. Last stated 4 months ago
20 May 2026
AR
Alice Ryhl — holds since 2026-05-20 — tap for who they are
Same subject: Python is ugly: full of superfluous instructions kept since 1987 for legacy reasons, and its __init__ offends the sensibilities to the core. — tap to centre the map on it Python is ugly: full of superfluous instructions kept since 1987 for legacy reasons, and its __init__ offends the sensibilities to the core. Last stated a year ago
12 Jul 2025
DH
David Heinemeier Hansson — holds since 2025-07-12 — tap for who they are
Same subject: The most-cited study showing that language design affects software quality rests on misclassified repositories. — tap to centre the map on it The most-cited study showing that language design affects software quality rests on misclassified repositories. Last stated 12 years ago
7 Nov 2014
DL
Dan Luu — holds since 2014-11-07 — tap for who they are
Same subject: A programming language is a ten-year play: version one has issues, version two fixes them, version three is finally good — and only then does adoption start. — tap to centre the map on it A programming language is a ten-year play: version one has issues, version two fixes them, version three is finally good — and only then does adoption start. Last stated 4 months ago
13 May 2026
AH
Anders Hejlsberg — holds since 2026-05-13 — tap for who they are
Same subject: A proprietary language licensed from Microsoft had zero chance in the JavaScript ecosystem: TypeScript had to be open source or nobody would come. — tap to centre the map on it A proprietary language licensed from Microsoft had zero chance in the JavaScript ecosystem: TypeScript had to be open source or nobody would come. Last stated 4 months ago
13 May 2026
AH
Anders Hejlsberg — holds since 2026-05-13 — tap for who they are
At the centre
Review, testing and QA is the new bottleneck in software engineering.
Holds Read this korrent →
Review became a worse bottleneck under AI, because companies removed the review automation they had once AI started writing the code.
Holds NF Nicole Forsgren
AI did not create the bottlenecks in software delivery; it threw gas on processes everybody already knew were weak.
Holds NF Nicole Forsgren
The human bottleneck is a safety property: remove it and small, individually harmless coding errors compound at a rate nobody feels until it is too late.
Holds
For an experienced programmer the bottleneck is usually not thinking but typing, getting what is already in your head into the editor fast enough.
Holds TH ThePrimeagen
AI has moved the programmer's bottleneck from writing code to having good design ideas, and there is no verification loop for a design idea.
Holds MN Michael Nielsen
Software is not less rigorous than traditional engineering; its record-keeping and automated verification are better than most of that field's.
Holds HW Hillel Wayne
Most organisations are bottlenecked on ideas, vision and taste rather than on implementation, so making code cheap does not make them productive.
Holds
The real bottleneck in product work is discovering a solution worth building, not building it.
Holds MC Marty Cagan
A language-agnostic conformance suite is the most powerful thing you can hand a coding agent, because the whole instruction becomes: write code until these tests pass.
Holds
A passing test suite is not evidence that the software works, so an agent must also be made to start the thing and exercise it the way a person would.
Holds
Adding a config option so nobody breaks compounds into permutations no test suite can cover, because it is infinitely harder to evolve software that has users.
Holds
Astra writes weird Python slop when one step removed from normal code, and its unit tests are horrific.
Holds
A language can keep changing without a Python-2-to-3 break, as long as code written under the old and the new rules can be mixed freely in one program.
Holds AR Alice Ryhl
Python is ugly: full of superfluous instructions kept since 1987 for legacy reasons, and its __init__ offends the sensibilities to the core.
Holds
The most-cited study showing that language design affects software quality rests on misclassified repositories.
Holds DL Dan Luu
A programming language is a ten-year play: version one has issues, version two fixes them, version three is finally good — and only then does adoption start.
Holds AH Anders Hejlsberg
A proprietary language licensed from Microsoft had zero chance in the JavaScript ecosystem: TypeScript had to be open source or nobody would come.
Holds AH Anders Hejlsberg