Carl Fyffe
@sixty4bit.bsky.social
Husband, father, nerd. Ruby on Rails.
Pinned
Carl Fyffe
@sixty4bit.bsky.social
· Nov 13
My posts will be a mix of sports, software, and entrepreneurship.
I am also interested in art (books, plays, music, movies, gaming), and transportation. You have been warned.
I am also interested in art (books, plays, music, movies, gaming), and transportation. You have been warned.
Dear book authors, for the love of Hermes, please use the built in styles of your word processor instead of changing font sizes.
December 22, 2025 at 8:32 PM
Dear book authors, for the love of Hermes, please use the built in styles of your word processor instead of changing font sizes.
Reposted by Carl Fyffe
When A/B tests are inconclusive, we like to let them run for longer “just in case.”
No, you’re wasting time.
If the difference was big enough to matter to your business, you’d know already.
The math:
No, you’re wasting time.
If the difference was big enough to matter to your business, you’d know already.
The math:
Easy statistics for A/B testing and hamsters
A/B testing tools often lie about whether something is “statistically significant.” Here’s an extremely simple, mathematically sound formula to compute it for yourself.
longform.asmartbear.com
December 21, 2025 at 3:09 PM
When A/B tests are inconclusive, we like to let them run for longer “just in case.”
No, you’re wasting time.
If the difference was big enough to matter to your business, you’d know already.
The math:
No, you’re wasting time.
If the difference was big enough to matter to your business, you’d know already.
The math:
If you are a Rails developer, the best thing you can do is clone Campfire, Fizzy, and Writebook locally and use them as examples of good code. Read the code, learn the right way to do things.
December 8, 2025 at 7:36 PM
If you are a Rails developer, the best thing you can do is clone Campfire, Fizzy, and Writebook locally and use them as examples of good code. Read the code, learn the right way to do things.
Movie you've watched more than six times with a gif. Hard mode: no Stars (Wars nor Trek), LOTR, or Marvel, Disney Animated or Pixar.
December 8, 2025 at 12:16 PM
Movie you've watched more than six times with a gif. Hard mode: no Stars (Wars nor Trek), LOTR, or Marvel, Disney Animated or Pixar.
Reposted by Carl Fyffe
Good on Penn Jillette. Having to come to terms with your entire political identity and philosophy being wrong is not easy and most people could never do it.
December 7, 2025 at 9:17 PM
Good on Penn Jillette. Having to come to terms with your entire political identity and philosophy being wrong is not easy and most people could never do it.
Reposted by Carl Fyffe
About 2 years ago an LLM machine would cost about $6,000 (a maxed out apple studio)
I think now with somewhat better small models, maybe $2000 for a used apple studio)
I can still buy a lot of tokens for $2,000 or $6,000
I think now with somewhat better small models, maybe $2000 for a used apple studio)
I can still buy a lot of tokens for $2,000 or $6,000
November 22, 2025 at 7:16 PM
About 2 years ago an LLM machine would cost about $6,000 (a maxed out apple studio)
I think now with somewhat better small models, maybe $2000 for a used apple studio)
I can still buy a lot of tokens for $2,000 or $6,000
I think now with somewhat better small models, maybe $2000 for a used apple studio)
I can still buy a lot of tokens for $2,000 or $6,000
Reposted by Carl Fyffe
![Comic. Panels up to the 10-year point are grayed out. New panels since the Ten Years comic, which chronicles the first ten years of PERSON 1's journey with cancer: (1) [two people in bed] PERSON 1 (woman): One more chapter? PERSON 2 (man): Don’t we both have to get up early? PERSON 1: Nnnnnggggh PERSON 2: Sure, good point. (2) [many people wearing masks, walking while looking at graphs on their phones] (3) [birds landing on people] PERSON 2 in beanie and scarf: Hah! They like *my* seeds best. PERSON 1 in scarf holding phone with a bird sitting on it: Wait, how do I take a picture of this one? (4) [two people rowing boats with tree landscape] (5) [Person 1 carries overflowing stack of things to Person 2 in bed] PERSON 1: I brought you honey lemon tea, more pillows, a cinnamon roll, Tylenol, another blanket, a– PERSON 2: It was just Appendicitis, I’m really– PERSON 1: *It is my turn to take care of you and I am going to do it right!* (6) [Two people in car] (7) [still in car) PERSON 1: Oh my god. PERSON 2: Oh my god. (8) [car driving] PERSON 1: Pull over! PERSON 2: I am! (9) [both people get out of car] (10) [Large colored panel of aurora borealis over water with both people looking on] (11) [Person 1 sits against tree while Person 2 lies on the ground] PERSON 1: Fifteen years. No sign of the cancer. (12) I *am* having some weird symptoms. Joint pain. Fatigue. I think I’m losing my close-up vision. PERSON 2: Yeah. Me too. (13) PERSON 2: I think we’re getting old. (14) PERSON 1: I guess that’s okay. PERSON 2: It’s all I wanted.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreihwhjblp5lyiwp63ouar7ocfea7evmckytoeo7rkfuoo4gw5rnrra@jpeg)
November 26, 2025 at 10:32 PM
Reposted by Carl Fyffe
If I learned one thing developing enterprise-y software, it’s that search is surprisingly hard. The fact that Google docs search is so bad should have been a dead giveaway.
if microsoft just made outlook search not suck they'd see triple the productivity gains of any AI integration
November 14, 2025 at 10:23 AM
If I learned one thing developing enterprise-y software, it’s that search is surprisingly hard. The fact that Google docs search is so bad should have been a dead giveaway.
Watching Chernobyl. Engineer: the core exploded. Manager: can't happen. Engineer: but it did. Radiation meters are maxed out. Manager: Don't believe you. Let's form a committee!
No wonder that country failed.
No wonder that country failed.
November 13, 2025 at 10:10 PM
Watching Chernobyl. Engineer: the core exploded. Manager: can't happen. Engineer: but it did. Radiation meters are maxed out. Manager: Don't believe you. Let's form a committee!
No wonder that country failed.
No wonder that country failed.
AI doesn't make my normal work easier. Ok, it does, but not by much. Where the LLMs shine is on the work that I am unfamiliar with. Fixing my friend's css issue for example: A day of research or 15 minutes with an LLM. This is where the LLM shines.
October 28, 2025 at 1:43 PM
AI doesn't make my normal work easier. Ok, it does, but not by much. Where the LLMs shine is on the work that I am unfamiliar with. Fixing my friend's css issue for example: A day of research or 15 minutes with an LLM. This is where the LLM shines.
Watching video about Porsche in trouble because they went all in on EVs. Video is stipulating that customers don't want EVs because they lack "soul". But half way through the video they say the Taycan breaks often and is crazy expensive to fix. Maybe it isn't about "soul" and is about reliability.
October 21, 2025 at 4:34 PM
Watching video about Porsche in trouble because they went all in on EVs. Video is stipulating that customers don't want EVs because they lack "soul". But half way through the video they say the Taycan breaks often and is crazy expensive to fix. Maybe it isn't about "soul" and is about reliability.
Reposted by Carl Fyffe
![4-panel comic. (1) [person in front of window, shaped like a trapezoid with a curved top] This weekend, I had to make an oversized screen for a porch window. (2) [person sitting with hands on head surrounded by images of assorted equations and measurements] It involved countless tiny problems, each somehow way harder than it should be. Oblique angles. Curved edges. Noncoplanarity. (3) [person in front of window with screen on it, with building detritus strewn on the ground] ...I solved them all. I measured precisely. I did trigonometry. I made custom parts. And it fit *perfectly.* No gaps, no ripples. (4) [person typing at computer] I know that your foundation normally limits its purview to physics, medicine, peace, chemistry, and literature. However, if you review the attached photos showing how well the screen fits into the...](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreifiwgrkbhiwy4pflbhpba4x7ordt7w6sv7ihwxzqasx2jcgtnncgy@jpeg)
October 7, 2025 at 7:43 PM
Sitting next to a 3 person group that is deploying doggy daycare franchises. I wish I had a buzz word bingo game to share with my wife. The seriousness of the conversation is astounding.
October 7, 2025 at 9:24 PM
Sitting next to a 3 person group that is deploying doggy daycare franchises. I wish I had a buzz word bingo game to share with my wife. The seriousness of the conversation is astounding.
2017 was peak car era. Before that the tech wasn't there. After that the buttons are gone. +-5 years based on Make.
October 6, 2025 at 2:47 PM
2017 was peak car era. Before that the tech wasn't there. After that the buttons are gone. +-5 years based on Make.
The funeral industry is just a bunch of worthless nothings. They do the bare minimum. Highly recommend just not dying, it's the easiest way.
October 2, 2025 at 3:08 PM
The funeral industry is just a bunch of worthless nothings. They do the bare minimum. Highly recommend just not dying, it's the easiest way.
Reposted by Carl Fyffe
I mean yes this is funny, but the fact that these unconstitutional stormtroopers are so directionless that they literally stand around waiting for random nonwhite delivery guys to bike past them is just pathetic. No mandate, no mission, no clue. Just racism.
ICE attempted
and failed to disappear a food delivery guy.
It needed to be scored.
and failed to disappear a food delivery guy.
It needed to be scored.
September 29, 2025 at 3:16 AM
I mean yes this is funny, but the fact that these unconstitutional stormtroopers are so directionless that they literally stand around waiting for random nonwhite delivery guys to bike past them is just pathetic. No mandate, no mission, no clue. Just racism.
I forgot that In My Room by Yaz is such a banger.
September 29, 2025 at 2:26 PM
I forgot that In My Room by Yaz is such a banger.
Reposted by Carl Fyffe
Ages ago, when I was still a student, I taught myself Ruby on Rails for my senior thesis and fell in love. Fifteen years later, and I’ve used Rails at every job I’ve ever held in the tech industry. Fifteen years, and I still love Rails! But there’s something rotten at its core, and we share a name.
Rails Needs New Governance
Ages ago, when I was still a student, I taught myself Ruby on Rails for my senior thesis and fell in love. Fifteen years later, and I’ve used Rails at every job I’ve ever held in the tech industry. Fifteen years, and I still love Rails! But there’s something rotten at its core, and we share a name.
davidcel.is
September 19, 2025 at 6:43 PM
Ages ago, when I was still a student, I taught myself Ruby on Rails for my senior thesis and fell in love. Fifteen years later, and I’ve used Rails at every job I’ve ever held in the tech industry. Fifteen years, and I still love Rails! But there’s something rotten at its core, and we share a name.
As a Cowboys and Longhorns fan... The past week has been brutal. Oh well. Let's go!
September 5, 2025 at 11:39 AM
As a Cowboys and Longhorns fan... The past week has been brutal. Oh well. Let's go!
Anthropic has two different ways to login to Claude: console.anthropic.com and claude.ai. They aren't the same. I go looking for billing information and I always try claude.ai first and it is never there. So annoying.
console.anthrooic.com
September 3, 2025 at 12:53 PM
Anthropic has two different ways to login to Claude: console.anthropic.com and claude.ai. They aren't the same. I go looking for billing information and I always try claude.ai first and it is never there. So annoying.
Dad: I didn't have a banana this morning, so I stopped at the store and bought a bag of M&M's.
August 29, 2025 at 10:31 PM
Dad: I didn't have a banana this morning, so I stopped at the store and bought a bag of M&M's.
When chatting with my LLM I will give it an instruction and then follow up with, "Just say Ok." I don't need a description of how my instruction was a good idea.
I wonder if this is a good practice or not.
I wonder if this is a good practice or not.
August 18, 2025 at 3:54 PM
When chatting with my LLM I will give it an instruction and then follow up with, "Just say Ok." I don't need a description of how my instruction was a good idea.
I wonder if this is a good practice or not.
I wonder if this is a good practice or not.
Reposted by Carl Fyffe
My job is dealing with stupid government software procurement shit, but this may be the dumbest government software procurement shit I have ever seen.
The Air Force and Navy are poised to cancel two nearly complete projects worth about $800 million because they want Salesforce and billionaire Peter Thiel's Palantir, to have a chance to win similar projects. The result could be a costly do-over.
www.reuters.com/world/us/how...
www.reuters.com/world/us/how...
August 13, 2025 at 10:48 PM
My job is dealing with stupid government software procurement shit, but this may be the dumbest government software procurement shit I have ever seen.
It is funny when my wife goes Momma Bear on someone. She's the nicest, calmest person I know, but when someone messes with one of her people, watch out!
August 13, 2025 at 8:17 PM
It is funny when my wife goes Momma Bear on someone. She's the nicest, calmest person I know, but when someone messes with one of her people, watch out!
I spent too much time in a car commuting to work. If I have to travel more than 10 minutes it isn't worth it.
And 10 minutes may be too long.
And 10 minutes may be too long.
August 12, 2025 at 11:19 PM
I spent too much time in a car commuting to work. If I have to travel more than 10 minutes it isn't worth it.
And 10 minutes may be too long.
And 10 minutes may be too long.