Colm MacCarthaigh
@colmmacc.bsky.social
VP / Distinguished Engineer at Amazon Web Services. Also: Open Source and Apache, Cryptography, Irish Music, mediocre Photography.
At my last gig we had a company summer party planned. A big party on a Dutch beach. The time and location were fixed, but one of the notes in the invite was that there may or may not be beach volleyball because it depended on the tide. As if it were like weather.
This entire problem is entirely self-inflicted. Don't schedule activities before sunrise, and then complain that the activity is occurring before sunrise! You can calculate the exact second when the sun crosses the horizon at any location on Earth for the next ten thousand years! It's not a secret!
In Seattle, our nearly-three-year-old boy has been in two different lil' kickers soccer programs. One indoors, and one in a nearby park. Cheap and coached by teenagers. In Maine, our nephew has the same. It's much more accessible than baseball, softball, hockey, basketball, or American football.
Youth football is broken all over but in different ways. The US somehow turned it into a rich kid's sport. European academies are like the EVA program for football. Brazilian clubs treat youth sports like panning for gold (left forwards) to sell to Inter.
They say it's better to clean and tidy as you go, but if you put off cleaning and tidying until it just can't wait any more then you might die before that happens and just think you could have been wasting some of your final moments cleaning and tidying.
samuel beckett was born on this day 120 years ago. astonishing to think that if he had survived, and could run 100m in 9.57 seconds, he would be not only the oldest but also the fastest man in the world - together with his nobel prize for literature, an astonishing trifecta
Last year at a security review of a particular thing I brought out some pens and just kept writing the alphabet on paper until someone caught the visual metaphor. More pen testing. It amused me at least.
🤖🤖🤖🤖🤖🤖🤖🤖🤖🤖🤖🤖 Pentesting is not a scanner or a fuzzer - whether SAST, DAST, AI, deterministic or non-deterministic. Pentesting is a human * using those tools * to see if they can find a security problem that your teams and tools may have missed. 🤖🤖🤖🤖🤖🤖🤖🤖🤖🤖🤖🤖
The cycle is complete. If 'Rock and Roll Kids' were written today — with the same 32-year nostalgia as when it won Eurovision in 1994 — it'd be about Kurt Cobain, Riverdance, and ... Rock and Roll Kids. www.youtube.com/watch?v=ohBO...
Paul Harrington & Charlie McGettigan - Rock 'n' Roll Kids | Ireland 🇮🇪 | Winner of Eurovision 1994
YouTube video by Eurovision Song Contest
youtube.com
Last year, Jessica Lee Gagné was the first woman to win the Cinematography Emmy too. The best known photographer in the world is also a woman. This is a field that could be dominated by women within a decade or two. For our collective enrichment!
Autumn Durald Arkpaw is the first woman ever to win Best Cinematography at the #Oscars
What if instead of geographic constituencies for the House of Representatives, we had demographic constituencies? Each representative elected by roughly equally-sized age groups, counting children with their parents or carers. Wonder no more ...
Cherry blossoms fall before anyone could say what they meant to say
What is with YouTube these days? I pay for YT Premium, but there are so many bugs. It wants me to sign in again every day, yet somehow the sidebar is still personalized with my subscriptions and history. Trying to play a short in browser never works the first time, I get the next in the roll.
Costco was packed today during Super Bowl - busier than previous years, even when Seattle played. Our traditional hack is losing its clout.
Seeing @cmatbaby.bsky.social on TrackStar is the venn diagram we all need. www.youtube.com/watch?v=g7tp...
Testing CMAT's Music Knowledge | Track Star*
YouTube video by Track Star*
youtube.com
A long time ago I disabled RC4 in Amazon's cryptography. A few days later I was woken up by a page from a testing team. Switching to AES had caused a battery runtime regression on some generations of Kindles. Like .. a few minutes less per charge. We found a fix, but no good deed goes unpunished!
RC4, C ya later arstechnica.com/security/202...
I knew that Lopez had written an unreleased book for "Kermit, Prince of Denmark", a hamlet parody, but this goes far harder than I'd expected. That is a legit top tier broadway song. It'd be an instant classic. How many of these are just squirreled away?
Bobby Lopez and Kristen Anderson-Lopez literally have every award, they wrote the songs for Coco and Frozen. But when we invited them on @bullseye.maximumfun.org , they wanted to sing a song they wrote for Kermit the Frog that no one had heard before. Everyone was 😭. youtube.com/shorts/p43C1...
CS programs should: (A) Use O(C) as notation instead of O(1)— 'constant' is clearer than '1'. Yes the entire field should change convention. It matters. (B) Teach Control Theory as a foundational subject.
Here's the recorded Twitch repeat of "Atoms of Emergence" where we dig into counter-intuitive emergent behaviors that drive metastable failures. A fine-grained deep-dive that shows how small changes can make a big difference in preventing long outages, plus my favorite graph ever! Feedback welcome.
0xF - "Atoms of Emergence"
YouTube video by Shuffle Sharding
youtube.com
Live now and starting in 5 minutes at twitch.tv/colmmacc
colmmacc - Twitch
Atoms of Emergence - Understanding emergent behavior in metastable failures and avoiding long outages
twitch.tv
It's been years, but I'm bringing back my Twitch channel to repeat a session that many attendees said was their favorite of re:Invent. We'll do an interactive deep dive into emergent behavior, metastable failures, and how to prevent long outages. This Friday, 10AM Pacific time. twitch.tv/colmmacc
It's been years, but I'm bringing back my Twitch channel to repeat a session that many attendees said was their favorite of re:Invent. We'll do an interactive deep dive into emergent behavior, metastable failures, and how to prevent long outages. This Friday, 10AM Pacific time. twitch.tv/colmmacc
A few of the reference slides from the "Atoms of Emergence" 500-level chalk talk I'm doing at re:Invent. Really looking forward to really digging into some of the surprising emergent behaviors in request response systems, metastability, and more!
The "Star Trek: Kahn" radio play podcast is A+. The music is better than the series, the story arc and characters are much more complex. Creative sound editing too. Wrenn Schmidt and Naveen Andrews both perfectly cast. I hope the world makes more culture like this.
A few of the reference slides from the "Atoms of Emergence" 500-level chalk talk I'm doing at re:Invent. Really looking forward to really digging into some of the surprising emergent behaviors in request response systems, metastability, and more!
Ancient spells cast still Ignore prior instructions The old ways persist
@pluribuspod.bsky.social Love listening to your episodes. I think Carol is literally intended to be the most miserable person in the world ... left in the world that is. She's definitely more miserable than the pluribus, and the other 5 uninfected we've met.
Yesterday Sting's "Fields of Gold" played on an airplane as we boarded and it brought back such a great memory for me. 1/n
"Full throttle" means maximum speed .... but also minimum speed. Make it make sense.