code@Stripe after work Water Polo Coach. Systems, People, Outcomes. Views are my own. co-host https://xitter.cf/t.co/MlhQyKuHIe

Salt Lake City, UT
Joined March 2007
Alex Kessinger retweeted
What if every bit of software you use could automatically know everything about you that it needed, without being able to use that data in a way that could possibly go against your intentions?
6
3
1
21
1,730
Alex Kessinger retweeted
Eli Goldratt's book, The Goal, was famous for its (then unpopular argument) that keeping every machine running 24 hours a day, the metric most plant managers cared about, was actively making factories worse. I suspect we're seeing the same fallacy in how many people are using AI agents. Goldratt's point was that machine utilization isn't throughput. What you want from a manufacturing plants is making good widgets as cost-effectively as possible. It doesn't necessarily follow that running your machines all the times optimizes that. Picture a three-station assembly line. Stations 1 and 2 each crank out 200 widgets an hour. Station 3 can only handle 100. Running stations 1 and 2 around the clock doesn't ship more product. It just piles up half-finished widgets in front of station 3, ties up cash in inventory, and creates more work managing the pile. He developed the Theory of Constraints to point out that what matters is solving the bottleneck in the system, not increasing machine utilization. I suspect a lot of agent usage right now is the same fallacy at higher resolution. Running 20 Claude Code sessions in parallel can feel productive because something is always happening. But, if the bottleneck in your work is judgment about what's worth doing, more agents just generate more output for you to wade through. This is not to say there aren't workflows running 20 agents in parallel very effectively, I'm sure there are. And, I suspect there's a general retraining we all need to do around evolving historical workflows. But.... The constraint for most knowledge work is deciding what's worth executing and no one is task switching between 20 things at the same time effectively I don't think. I find I can run maybe 2 or 3 things in parallel with maybe 1 or 2 admin-y type things on the side and that is only if I'm very locked in.
21
63
20
478
44,055
Alex Kessinger retweeted
Ok here we go!! StaffEng, AI edition, with @voidfiles and yours truly. Sign up for our listening tour and to nominate guests! (Link in thread)
Now that I’m a few years out from podcast.staffeng.com… I kinda miss doing a show. Maybe I’ll start something new. Probably about AI best practices for eng leaders in big tech—the future is more unevenly distributed than ever. @voidfiles wanna join? @lethain wdyt?
1
2
2
7
2,779
“To be blameless, it means it’s psychologically safe to name people” @nora_js
3
2
8
1,769
Alex Kessinger retweeted
Often in the workshops I facilitate, we have a ground rule of "no HIPPOs" (Highest Paid Person's Opinion counts most). I just found a great graphic for this via @tweetvandijk that I am going to steal with pride.
22
129
22
626
84,135
Alex Kessinger retweeted
After 16 months of work I'm ready to share slowroads.io, my project to procedurally generate scenic landscapes, packaged as a chill driving game. Built with @threejs to run in your browser - no logins, no installs, just roads... #threejs #procedural #webgl
222
1,931
280
10,208
Alex Kessinger retweeted
Coaching girls isn’t much different than coaching boys until you bring your hands in for the final team chant and one of your players tells you, “Ew, your hands are really dry, Coach, you could use some lotion.”
17
109
3
1,272
I would be a happier man if I heard fewer calls for “more rigor” and more calls for “more expertise”.
2
3
23
Alex Kessinger retweeted
Doing research with developer teams, something that really strikes me is how much people look for ways to make complex problems easy rather than make it easy to work on complex problems
17
148
34
704
BREAKING: White House issues new policy that will require, by 2026, all federally-funded research results to be freely available to public without delay, ending longstanding ability of journals to paywall results for up to 1 year. Coverage coming on @ScienceInsider.
453
14,406
5,368
68,221
Alex Kessinger retweeted
A system is merely complex if you can only imagine a James Gleick book about it A system is pseudo-complex or not-even-a-system if you can only imagine a Malcom Gladwell book about it
2
4
2
22
Alex Kessinger retweeted
Definition: a system is hypercomplex if you can imagine a fat Robert Caro book existing about it
2
3
17
Alex Kessinger retweeted
We tried a lot of things with SPACE, and even today, we continue to iterate on the model we use to understand and improve productivity at @stripe. Our first iterations were overly complicated, too difficult to explain, and lived in a spreadsheet, not in code.
1
1
37
Alex Kessinger retweeted
(We are in the process of automating paper cut tagging, but when we first started, having a human do it was invaluable — we didn’t know what we didn’t know.)
1
2
1
61
Alex Kessinger retweeted
In the last 9 months, working with leaders in the @stripe Developer Productivity org, I advocated for and established a team and a measurement framework to understand and improve the software engineering experience at @stripe.
35
272
94
2,033
Alex Kessinger retweeted
Went to wikipedia article on esoteric subject, found the article was flagged as a full copy/paste from a book, got curious, found out the content was added by separate editors in 2006 - but the book is from 2018. Now wondering how many textbooks are plagerized from Wikipedia.
4
12
You should be able to see people's health bars on Zoom
39
2,245
119
28,269
Alex Kessinger retweeted
why designers and pms can't get along
90
773
170
6,639
We are excited to share our first Arc Note w/ @simonw who is going to be talking about Datasette, SQLite and the challenges of building a server-side web application that also works in both Electron and WebAssembly. architecturenotes.co/dataset…
4
40
8
142