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Ball-knowers knew all along that Twitter wasn’t just going to collapse after Elon fired 75% of the staff, because Twitter 1.0 had some of the best infrastructure engineers working on it, and when you get that calibre of people building your foundations, it lasts.
@SeanTAllen @MarcJBrooker Would be super curious to see this. I feel like currently we’re in the best and worst of times, where a massive amounts of code is being generated, but I spend a lot of effort making sure every bug is correctly diagnosed, and rejecting a ton of stuff. It’s super exhausting.
@MarcJBrooker No amount of existing testing methodologies can help fix this “spurious edge case misattribution” problem. LLMs even fail to deterministically debug the same problem the same way, in two different sessions. I just don’t have the confidence to trust the code it generates.
@MarcJBrooker The bigger problem is that people often open PRs for bugs etc that don’t fix the problem at all. LLM often manage to even repro something, but it’s for a really obscure edge case no real end user is hitting, while the actual bug goes undiagnosed.
With agentic coding, even in the best case scenarios (where you read every line of generated code), there’s something we’ve lost, perhaps irrevocably. That has a real cost, & not to mention, second and third order effects, that “software factories” etc don’t necessarily solve.
@umachingunde Reddit is teeming with anti-AI people. There were (probably still are) even *programming* subs where you couldn’t mention AI.
Writing a post about “how to effectively debug code when you no longer fully understand it”. This is real bug I had to fix in ~9K LOC (100% AI generated). None of the tactics I started with here helped “root cause” the issue, lol. Had to take a different approach to isolate it.
@nihil2501 An excerpt from an unpublished blog post draft of mine
@__alexlazar__ Update: Been super busy lately, but should have time on weekends in Sept. Should be done by the end of this month, I hope. Here’s an excerpt (as proof I haven’t abandoned this, lol)
One thing I don’t see many talk about is how coding agents can often *amplify* weaknesses, both individual and organizational. I think of this as the “empty calories” problem, which is exacerbated when “hyperproductivity” originates from your team’s “lowest common denominator”.
@__alexlazar__ Update: Been super busy lately, but should have time on weekends in Sept. Should be done by the end of this month, I hope. Here’s an excerpt (as proof I haven’t abandoned this, lol)
One thing I don’t see many talk about is how coding agents can often *amplify* weaknesses, both individual and organizational. I think of this as the “empty calories” problem, which is exacerbated when “hyperproductivity” originates from your team’s “lowest common denominator”.
@__alexlazar__ About 40% done. Hoping to fully wrap this up next week. Posting here to keep myself accountable, and not abandon this draft, lol.
I used to say “you should aim to understand every line of generated code” (and I still try to!) But in practice, there’s an emergent set of (sometimes counterintuitive) skills (NOT loops/toxenmaxxing!) that lets one ship and debug large amounts of unfamiliar code productively.
The IDE/editor might be dead, but it helps to occasionally open one and read some code. Often, what “looked OK” in isolation when an agent wrote a patch can end up looking *very* different from more of a “panoramic view”, with misshapen and incoherent APIs, abstractions.
@HumanTechGuy Oh yes, still human. Just siccing Claude on a “loop” on this bug would not have got me anywhere for sure.
I previously called this an “emergent” skill set. The people yapping about how you “don’t need to understand the code anymore” are NOT telling you how to sharpen or even hone this new skillset, where you *can* debug problems out of your comfort zone, methodically with AI.
I used to say “you should aim to understand every line of generated code” (and I still try to!) But in practice, there’s an emergent set of (sometimes counterintuitive) skills (NOT loops/toxenmaxxing!) that lets one ship and debug large amounts of unfamiliar code productively.
Incidentally, this proves that with AI you can now solve problems *way* out of your wheelhouse or your “knowledge/skill” level, if you persevere enough and can get creative with how you approach debugging. It’s a different skill set than coding or even traditional debugging tho.
The people who blithely claim “you don’t need to understand the code anymore” aren’t telling you what debugging looks like in such cases Here’s one example where I had to debug a gnarly problem at work with Claude *without* access to the code Possible? Yes “Easy”? Nope 🙂↔️
The people who blithely claim “you don’t need to understand the code anymore” aren’t telling you what debugging looks like in such cases Here’s one example where I had to debug a gnarly problem at work with Claude *without* access to the code Possible? Yes “Easy”? Nope 🙂↔️
@typesanitizer I find so much of “influencer” wisdom to be extremely ill-advised. The people who probably can give the best advice are busy with their jobs and lives, and those with ample time to pontificate more often than not leave me baffled.
@tianyin_xu As someone who came here on a student visa 15 years ago, it pains me to see this. The war on international students is one of the most self-destructive acts ever.
I’m increasingly convinced that “giving a shit” will be a competitive differentiator now that everyone is using AI to do their work. Ten years ago, I had this manager who was a perfectionist. whenever he thought a presentation was “done” he’d spend 15 more minutes changing colors and aligning shapes (that were def already aligned, btw) and checking where the titles sat so they didn’t jump from slide to slide. He was purposefully trying to locate the point others would quit, and then put just a little more effort in. At first I was like dude you’re a psychopath we’ve been working on this deck for a month. It’s great. But his point was that going the extra 10% has a non linear impact if everyone else stops at around the same point. That was pre AI. Today people can pump and dump drivel at a fantastic clip. And they hit send or post after pretty minimal effort, awash in the glory of the 80% ok slop they so quickly created. On one hand, it’s frustrating. But on the other hand, it’s creating a new opportunity to stand out by simply giving a shit. By caring about your work product a little bit more and taking it personally you separate yourself by a wide margin. So give a shit today! It might make you great.
@SeanTAllen Still at the fruit stand
Jaana Dogan ヤナ �... @rakyll
168K Followers 1K Following ML/AI Systems at Google. Simplicity and optimism. Personal opinions. 🇺🇸🇪🇺
ahmet alp balkan @ahmetb
51K Followers 390 Following infra @baseten 🌹 oss: https://t.co/LbCjmbdKkJ did large-scale baremetal compute in a past life
Charity Majors @mipsytipsy
82K Followers 592 Following honeycomb, observability, the second edition of "Observability Engineering" is coming out soon. find me on substack, bsky, LI, and occasionally here. 🐝🏳️🌈🦄
@norootcause.surfingc... @norootcause
13K Followers 5K Following Lorin Hochstein Student of complex systems failures, resilience eng, cognitive sys eng. Will talk your ear off about @LFISoftware. @[email protected]
Colm MacCárthaigh @colmmacc
38K Followers 2K Following VP / Distinguished Engineer at Amazon Web Services. Also: Open Source and Apache, Cryptography, Irish Music, mediocre Photography.
Thiago Ghisi @thiagoghisi
25K Followers 3K Following 🤹♂️ (Former) Director of Eng at @Nubank, @Apple, @AmericanExpress. 🇧🇷 in🗽. I share career growth strategies, leadership insights & my many reads. 📚🐛.👇
apenwarr @apenwarr
17K Followers 2K Following wvdial, bup, sshuttle, netselect, popularity-contest, redo, gfblip, GFiber, and now @Tailscale doing WireGuard mesh. Top search result for "epic treatise."
Marc Brooker @MarcJBrooker
28K Followers 749 Following Distinguished engineer at AWS. AI, agents, databases, and serverless. Views are my own.
Tim Hockin (thockin.y... @thockin
27K Followers 728 Following SW Engineer: Kubernetes, GKE, Google Cloud. Dad. Foodie. Star Wars nerd. Expanse fan. @thock.in on bluesky. No longer on xitter.
Jessica Kerr @jessitron
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Pekka Enberg @penberg
20K Followers 1K Following Founder & CTO @tursodatabase; previously @ScyllaDB and Linux kernel. Author of "Latency" (https://t.co/XWRFq71WaJ).
Alex P @ifesdjeen
16K Followers 1K Following Distributed and Storage Systems. Apache Cassandra Committer and PMC member. Author of Database Internals @therealdatabass. Discord: https://t.co/8LwhZom9eQ
Adam Jacob @adamhjk
20K Followers 1K Following CEO of Swamp Club, Co-Founder of Chef. Sustainable free and open source software communities. Music. He/Him. https://t.co/fyc6yziWBv
Gwen (Chen) Shapira @gwenshap
30K Followers 11K Following Co-founder of @niledatabase. Making SaaS global, elastic and chill. Find me at: https://t.co/uyuHg400cp
Aidan W Steele @__steele
10K Followers 2K Following I try to tweet novel things about AWS.“Shit-poster extraordinaire” according to @LastWeekInAWS. He/him. AWS Serverless Hero
Daniel Bryant @danielbryantuk
15K Followers 3K Following Building platforms @Syntasso | News/Podcast @InfoQ | Web 2.0 coder, platform engineer, Java Champion, CS PhD | cloud/K8s, APIs, IPAs, running | learner/teacher
Martin Kleppmann @martinkl
50K Followers 939 Following Find me at @martin.kleppmann.com on Bluesky, @[email protected] on Mastodon. Author of @intensivedata, Associate Professor @Cambridge_CL. he/him
Andrew @Andrew99_s
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ismailnc @ismailnc469394
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sank @sankman99
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Rohan Malhotra @rm_infinite
799 Followers 3K Following CEO @roadzeninc (Nasdaq: $RDZN). We’re transforming global auto insurance using AI.
Carmen Luo @CarmenLuoSD
1 Followers 19 Following A mosaic of all the people and places I’ve met along the way
kiwi @chefkiwii
1 Followers 102 Following
8ashes @8ashes1
1 Followers 74 Following
CapraBrand @CapraBrand
0 Followers 25 Following Push your brand everywhere. SEO, social, blog, and brand assets from one hub. Building in public.
Production Systems @prodsystems_
0 Followers 5 Following Distributed | Consensus | Infrastructure Systems engineering journal for developers and architects building at scale.
ingallz @duchuy31
0 Followers 39 Following
Sudarshan Vasudevan @svasudevan2000
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eduardo nava @ednavamarquez
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Seenu @systemCnu
13 Followers 2K Following
Bryce Horner @bryce_horner
192 Followers 2K Following Commercial real estate broker advising owners, operators, and investors. Executive Vice President, Capital Markets with @HBWilliamCo
ujval @_ujval
392 Followers 988 Following CS PhD student @ucberkeley @berkeleyRDI (on sabbatical) based in nyc @cornell_tech, visiting @penn
Rohit Singh @RohitSi79136623
3 Followers 95 Following I code, break things at scale, and read economics and history or something that makes the world make a little more sense.
Lumberjack @Lumberj98020390
13 Followers 148 Following Anyone knows why my certificate says “Darwin Award” on it?
Fire AI @FireAIf9ed
46 Followers 448 Following
suraj kumar @surajkumargr
4 Followers 234 Following
Clare Liguori @clare_liguori
25K Followers 300 Following Senior Principal Engineer, AWS Agentic AI. Working on @kirodotdev 👻, Strands Agents SDK 🧬, MCP Core Maintainer 🤝
akvartz @akvartz
0 Followers 55 Following I've been lurking for about seventeen years, ok? I don't write my stuff anymore I just kick it from my head... I can do that. No disrespect, but thats how I am.
mklagi @mklagi_
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Arpit mohapatra @moharpit
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Grog Hutter @GrogHutter
191 Followers 5K Following Current: Tech. Past: Illiquid Equity and Credit buyside, PE, Special Sits, M&A, Capital Markets.
Mathew @zsMathew
59 Followers 582 Following AI, SaaS, Enterprise Technology Helping businesses build custom AI harnesses around their data, workflows, and tools.
dheyam s @dheyam14
44 Followers 1K Following
Rob MacInnis @robmac
1K Followers 1K Following Scientist, entrepreneur, computer geek, and stellar bio-writer. CEO & Founder @AetherWorksLLC | Partner @BlueBearCap | @ActiveAether | @AetherStore
A Kara @karatwork
1 Followers 138 Following
AnonGirder @AnonGirder
540 Followers 413 Following
Nobin Mathew @nobinmathewk
22 Followers 664 Following
Gidibam | Web Dev & S... @gidibamshop
310 Followers 888 Following I build websites and teach SEO. Dropshipping breakdowns, tech trends, product reviews and your questions answered. Free guides: https://t.co/qlQjYj9mj6
Manoj Bapat @ManojBapat
26 Followers 5K Following
Frank Steelman @FSteelman75896
20 Followers 535 Following
Varun Bondalapati @bonvarun
21 Followers 2K Following
Runeet Vashisht @runeetv
395 Followers 2K Following Solutions Architect at @awscloud. Views expressed here are mine and not of my employer. Interested in Software Development and Cloud.
The Guy @Guygies
3K Followers 3K Following Code Specifier since '78. Full stack Specifier. Champion of lowbies. Around us infinities abound.
Vicky Rose @VickyRoseag89
56 Followers 1K Following
mrest @mrest23cq
0 Followers 212 Following
Jaana Dogan ヤナ �... @rakyll
168K Followers 1K Following ML/AI Systems at Google. Simplicity and optimism. Personal opinions. 🇺🇸🇪🇺
Charity Majors @mipsytipsy
82K Followers 592 Following honeycomb, observability, the second edition of "Observability Engineering" is coming out soon. find me on substack, bsky, LI, and occasionally here. 🐝🏳️🌈🦄
Mitchell Hashimoto @mitchellh
229K Followers 154 Following Co-founder of @Superlogical. Creator of Ghostty. 👻 Prev founded @HashiCorp, created Vagrant, Terraform, Vault, and others.
Dan Luu @danluu
48K Followers 44 Following Active on https://t.co/WG71Nrs60M; also trying out https://t.co/eLkwVd8jFD
Colm MacCárthaigh @colmmacc
38K Followers 2K Following VP / Distinguished Engineer at Amazon Web Services. Also: Open Source and Apache, Cryptography, Irish Music, mediocre Photography.
apenwarr @apenwarr
17K Followers 2K Following wvdial, bup, sshuttle, netselect, popularity-contest, redo, gfblip, GFiber, and now @Tailscale doing WireGuard mesh. Top search result for "epic treatise."
Marc Brooker @MarcJBrooker
28K Followers 749 Following Distinguished engineer at AWS. AI, agents, databases, and serverless. Views are my own.
Hillel @hillelogram
18K Followers 1 Following Developer educator at @AntithesisHQ. Formal methods, software history, chocolatiering. Newsletter: https://t.co/YrRPK2p8Pc Book: https://t.co/omGN29k6LJ
Tim Hockin (thockin.y... @thockin
27K Followers 728 Following SW Engineer: Kubernetes, GKE, Google Cloud. Dad. Foodie. Star Wars nerd. Expanse fan. @thock.in on bluesky. No longer on xitter.
Alex P @ifesdjeen
16K Followers 1K Following Distributed and Storage Systems. Apache Cassandra Committer and PMC member. Author of Database Internals @therealdatabass. Discord: https://t.co/8LwhZom9eQ
Adam Jacob @adamhjk
20K Followers 1K Following CEO of Swamp Club, Co-Founder of Chef. Sustainable free and open source software communities. Music. He/Him. https://t.co/fyc6yziWBv
Gwen (Chen) Shapira @gwenshap
30K Followers 11K Following Co-founder of @niledatabase. Making SaaS global, elastic and chill. Find me at: https://t.co/uyuHg400cp
Daniel Bryant @danielbryantuk
15K Followers 3K Following Building platforms @Syntasso | News/Podcast @InfoQ | Web 2.0 coder, platform engineer, Java Champion, CS PhD | cloud/K8s, APIs, IPAs, running | learner/teacher
Martin Kleppmann @martinkl
50K Followers 939 Following Find me at @martin.kleppmann.com on Bluesky, @[email protected] on Mastodon. Author of @intensivedata, Associate Professor @Cambridge_CL. he/him
William (Bill) Kenned... @goinggodotnet
26K Followers 305 Following ⌯Go: Walking the line between correctness and comprehension ⦁ [email protected] ⦁ https://t.co/mrJbZv6ByA⦁ Wife(@aleintech) ⦁ NPO(@golangbridge) ⦁ GMT-4(MIA)
Brad Fitzpatrick 🌻 @bradfitz
50K Followers 1K Following I do computers. Married to @radkat. 3 kids. Xoogler. @golang team '10~'20. Made LiveJournal, memcached. Now @Tailscale. Mostly in bluer skies these days.
Deepak Singh @mndoci
17K Followers 56 Following @kirodotdev. Also tweet about synths, music, cameras, birds, and soccer.
Claire Valdez @claireforny
22K Followers 760 Following Democratic nominee for Congress in NY-7 (Western Queens, North Brooklyn). Union organizer, Assemblymember and democratic socialist. Solidarity forever.
Sanjay Ghemawat @Sanjay_Ghemawat
42K Followers 11 Following
TechStockFundamentals @TechFundies
19K Followers 332 Following Tech investor for ~25 years. Ran large hedge fund for 10 of those. Here to help. Not investment advice. I never reach out to sell ANYTHING.
Mark Gurman @markgurman
479K Followers 2K Following Breaking News on Apple & Tech. Bloomberg Managing Editor. @UMSI Board Member. Send secure tips on Signal: markgurman.01 or email [email protected].
Soren Kierkegaard @BumrahBachi
4K Followers 807 Following YC gave me money so I'm building something people might want
Joey Politano 🏳️... @JosephPolitano
94K Followers 2K Following Writing a data-driven newsletter about economics @ https://t.co/IanQ9oPoPi | Nuance? In this economy? | Full Employment Stan, Brazilian Coffee Tariff Victim
wangbin579 @wangbin579
18K Followers 133 Following Expert in tackling complex software challenges, with deep knowledge of TCP, MySQL and PostgreSQL kernels, and a passion for AI, history, math, and physics.
Deedy @deedydas
254K Followers 6K Following Partner at @MenloVentures. Investor: Anthropic, OpenRouter, Modal, Wispr, Pangram, Inception, Goodfire, PrimeIntellect prior: Glean, Google Search. Cornell CS.
Simon Willison @simonw
224K Followers 6K Following Creator @datasetteproj, co-creator Django. PSF board. Hangs out with @natbat. He/Him. Mastodon: https://t.co/t0MrmnJW0K Bsky: https://t.co/OnWIyhX4CH
scott belsky @scottbelsky
151K Followers 2K Following helping the creative world make ideas happen. partner @a24 / founder A24Labs; founder @Behance, bod @atlassian & MoMA, author, seed investor, product obsessive.
Dan Luu @altluu
4K Followers 1 Following Chatty alt of @danluu. Mainly on https://t.co/V3Q53o3vC3 and https://t.co/00xlxH8ipr.
Lu Pan @uvdn7
504 Followers 262 Following Working on distributed systems at Facebook. “uvdn7” is “lupan” rotated by 180.
Micah Learns @micahlerner
4K Followers 1K Following Google Geo SRE 🗺️📍, prev @mapbox, @strava. Following my curiosity and writing about CS/AI/Systems research - https://t.co/aRJWZub62X.
(past account, never ... @whereistanya
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Corey Quinn @QuinnyPig
107K Followers 1K Following Chief Cloud Economist and co-founder at Duckbill. Author, Artificial Confidence. Professional skeptic with receipts.
David Fowler @davidfowl
148K Followers 1K Following Distinguished Engineer at Microsoft, Creator of NuGet, SignalR, https://t.co/PiydKAsC8g Core, Aspire and Barbadian 🇧🇧, Tennis Player, Father, other half @symonefowler
Gergely Orosz @GergelyOrosz
357K Followers 3K Following Writing @Pragmatic_Eng, the #1 software engineering newsletter on Substack. Author of @EngGuidebook. Formerly Uber & Skype.
John Allspaw @allspaw
26K Followers 1K Following Cofounder, @AdaptiveCLabs, “the NTSB of Tech” bringing Resilience Engineering to industry. he/him. Won’t speak on all-male panels, and #blacklivesmatter.
Peggy Li @_peggyli
2K Followers 455 Following she/her/她. former eng @stripe @mavenclinic @dropbox @navapbc @clever. 🏃🏻♀️ 10x26.2
Lenny Pruss @lennypruss
4K Followers 1K Following VC @AmplifyPartners. Tepid takes on distributed systems, dev tools and #SJSharks
Joe Beda @jbeda
46K Followers 1K Following Semi-retired technologist. He/Him. Stepping away from Twitter. Signal: jbeda.99 Bluesky: https://t.co/lhuhgjKJbf
@[email protected] @ParisInBmore
6K Followers 703 Following @[email protected] - the elephant site / same user name on the cloudy skies site except on the social server.
Konrad ‘ktoso’ Ma... @ktosopl
8K Followers 4K Following “Life is Study!”; [email protected]; Concurrency & Distributed Swift @ Previously: @akkateam, reactive streams, @geecon @Java_Champions
Sean Kelly @StabbyCutyou
2K Followers 373 Following Speaker, Writer, Hair-grower. I used to be nasty at NBA Jam. Not so much anymore, though. He/Him. @[email protected]
ɹǝʞʎds ʍǝɹpuɐ @aspyker
2K Followers 841 Following Technology Devotee, Cloud/Performance, Jeeper, Wine and Poker Enthusiast, @NVIDIA, ex-@Gemini, ex-@Netflix, ex-@IBM (Andrew Spyker)
Jason Moiron @jmoiron
1K Followers 84 Following find me on https://t.co/QOGazq1yI4 or on the butterfly site
[email protected] @kavya719
3K Followers 124 Following
Obfuscurity @obfuscurity
5K Followers 303 Following O11y Engineer @Nscale. Founder @Monitorama. Previously: OCI, Replicated, Fastly, Sensu, Librato, Dyn, GitHub, Heroku & more.
👩💻Jenn Basal... @pennyblackio
370 Followers 917 Following Director of Engineering - @fastly ⚙️ Coach👊 Debrouillarde 👩💻Tweets are my own opinions. Alumn: @ntt_america @facebook @opendns @dropbox @splice
Manish @ManishEarth
15K Followers 636 Following territory mapper. 💉did @ca_covid . 🗣️ likes languages. 📜 @unicode stuff. helped make @rustlang. ✈️ Repatriate/ABCD. 👨🔬 Formerly physics. he/him































