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← Performance-critical human contributions will remain an edge case, and…
17 connected korrents · 12 moments on record from 1 Jun 2022 to 19 Sept 2026.
Everything filed under software performance
software performance
Everything filed under code generation
code generation
Everything filed under coding agents
coding agents
Everything filed under compilers
compilers
Everything filed under JavaScript
JavaScript
Everything filed under AI and jobs
AI and jobs
Everything filed under LLMs
LLMs 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: Performance-critical human contributions will remain an edge case, and in 99% of software a faster algorithm or better data structure does not matter. Performance-critical human contributions will remain an edge case, and in 99% of software a faster algorithm or better data structure does not matter. Last stated today
19 Sept 2026
TB
Thorsten Ball — holds since 2026-09-19 — tap for who they are
Same subject: Everyone on a team who makes architectural decisions must understand performance, because a codebase that can be optimized later only ends up that way on purpose. — tap to centre the map on it Everyone on a team who makes architectural decisions must understand performance, because a codebase that can be optimized later only ends up that way on purpose. Last stated 3 weeks ago
26 Aug 2026
CM
Casey Muratori — holds since 2026-08-26 — tap for who they are
Same subject: The evidence from the largest software companies says programmers should take performance more seriously than they do, not less. — tap to centre the map on it The evidence from the largest software companies says programmers should take performance more seriously than they do, not less. Last stated 3 years ago
26 Apr 2023
CM
Casey Muratori — holds since 2023-04-26 — tap for who they are
Same subject: Hand-optimizing hot spots barely matters any more, because the libraries are already fast and CPUs are extremely good at running bad code quickly; what is left is architecture. — tap to centre the map on it Hand-optimizing hot spots barely matters any more, because the libraries are already fast and CPUs are extremely good at running bad code quickly; what is left is architecture. Last stated 3 weeks ago
26 Aug 2026
CM
Casey Muratori — holds since 2026-08-26 — tap for who they are
Same subject: People will matter more in an AI future, not less, and giving them better tools is what makes that future a good one. — tap to centre the map on it People will matter more in an AI future, not less, and giving them better tools is what makes that future a good one. Last stated 3 months ago
10 Jun 2026
MZ
Mark Zuckerberg — holds since 2026-06-10 — tap for who they are
Same subject: Having the very best AI model and harness does not result in better or faster execution and can slow teams down — tap to centre the map on it Having the very best AI model and harness does not result in better or faster execution and can slow teams down Last stated today
19 Sept 2026
GO
Gergely Orosz — holds since 2026-09-19 — 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 3 weeks ago
26 Aug 2026
DH
David Heinemeier Hansson — holds since 2026-08-26 — 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 6 months ago
25 Mar 2026
MZ
Mario Zechner — holds since 2026-03-25 — 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: 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 2 months ago
27 Jul 2026
BC
Boris Cherny — holds since 2026-07-27 — 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 2 months ago
26 Jul 2026
DH
David Heinemeier Hansson — holds since 2026-07-26 — tap for who they are
Same subject: AI has made it cheap to build the features that were never worth building, so shipping a new feature every day can make a product worse rather than better. — tap to centre the map on it AI has made it cheap to build the features that were never worth building, so shipping a new feature every day can make a product worse rather than better. Last stated 3 months ago
24 Jun 2026
NE
NeetCode — holds since 2026-06-24 — tap for who they are
Same subject: A compiler that also serves an IDE has to be lazy and deferred throughout — a different way of building compilers from the one the textbooks teach. — tap to centre the map on it A compiler that also serves an IDE has to be lazy and deferred throughout — a different way of building compilers from the one the textbooks teach. Last stated 4 months ago
13 May 2026
AH
Anders Hejlsberg — holds since 2026-05-13 — tap for who they are
Same subject: A compiler that names every place a change breaks turns refactoring into fixing errors until the compiler stops shouting. — tap to centre the map on it A compiler that names every place a change breaks turns refactoring into fixing errors until the compiler stops shouting. Last stated 4 months ago
20 May 2026
AR
Alice Ryhl — holds since 2026-05-20 — tap for who they are
Same subject: A programming language is not a compiler but an experience: editing, running, debugging and the runtime library all have to fit together as one cycle. — tap to centre the map on it A programming language is not a compiler but an experience: editing, running, debugging and the runtime library all have to fit together as one cycle. 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
Same subject: Because its types are erased before the program runs, TypeScript can afford not to be sound: checking 99% beats the 0% JavaScript checked, and buys features a sound language cannot offer. — tap to centre the map on it Because its types are erased before the program runs, TypeScript can afford not to be sound: checking 99% beats the 0% JavaScript checked, and buys features a sound language cannot offer. Last stated 4 months ago
13 May 2026
AH
Anders Hejlsberg — holds since 2026-05-13 — tap for who they are
Same subject: Fiscal multipliers vary across time and place but are generally nonzero, positive for spending, negative for taxes, and larger when monetary policy cannot offset them. — tap to centre the map on it Fiscal multipliers vary across time and place but are generally nonzero, positive for spending, negative for taxes, and larger when monetary policy cannot offset them. Last stated 4 years ago
1 Jun 2022
OB
Olivier Blanchard — holds since 2022-06-01 — tap for who they are
At the centre
Performance-critical human contributions will remain an edge case, and in 99% of software a faster algorithm or better data structure does not matter.
Holds Read this korrent →
Everyone on a team who makes architectural decisions must understand performance, because a codebase that can be optimized later only ends up that way on purpose.
Holds
The evidence from the largest software companies says programmers should take performance more seriously than they do, not less.
Holds
Hand-optimizing hot spots barely matters any more, because the libraries are already fast and CPUs are extremely good at running bad code quickly; what is left is architecture.
Holds
People will matter more in an AI future, not less, and giving them better tools is what makes that future a good one.
Holds
Having the very best AI model and harness does not result in better or faster execution and can slow teams down
Holds
Most organisations are bottlenecked on ideas, vision and taste rather than on implementation, so making code cheap does not make them productive.
Holds
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
Review became a worse bottleneck under AI, because companies removed the review automation they had once AI started writing the code.
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
AI acceleration threatens 'less software': without the constraint of scarce hours, even 37signals will likely build too much.
Holds
AI has made it cheap to build the features that were never worth building, so shipping a new feature every day can make a product worse rather than better.
Holds
A compiler that also serves an IDE has to be lazy and deferred throughout — a different way of building compilers from the one the textbooks teach.
Holds
A compiler that names every place a change breaks turns refactoring into fixing errors until the compiler stops shouting.
Holds
A programming language is not a compiler but an experience: editing, running, debugging and the runtime library all have to fit together as one cycle.
Holds
A proprietary language licensed from Microsoft had zero chance in the JavaScript ecosystem: TypeScript had to be open source or nobody would come.
Holds
Because its types are erased before the program runs, TypeScript can afford not to be sound: checking 99% beats the 0% JavaScript checked, and buys features a sound language cannot offer.
Holds
Fiscal multipliers vary across time and place but are generally nonzero, positive for spending, negative for taxes, and larger when monetary policy cannot offset them.
Holds