I believe the principles the article author is looking for are core to Pivotal Tracker.
I've often tried to persuade teams to use Tracker, but everyone sure loves the whiteboard metaphor!
Wow, I would not have expected frontier models to be caught on something like this but I tried it and they absolutely do. I don't really have a great explanation for why they might have such a hard time with this either. I even tried varying the prompt to make it "easier" by pointing out that Alice was a girl and no change.
> I would not have expected frontier models to be caught on something like this but I tried it and they absolutely do.
This got me curious. Tried on Gemini 2.5 Pro out of curiosity. It gets it right, but it did think about it, and then even explain itself a lot in its official text response.
Thinking:
Here's my thought process for solving this classic riddle:
Identify the key players: The problem mentions Alice, her brothers, and her sisters.
Establish Alice's family structure:
Alice is a girl.
She has 3 brothers.
She has 6 sisters.
Determine the total number of children in the family:
Girls: Alice (1) + her sisters (6) = 7 girls
Boys: Alice's brothers (3) = 3 boys
Total children: 7 girls + 3 boys = 10 children
Focus on the question: "How many sisters does her brother have?"
Shift perspective: Now, consider one of Alice's brothers (let's call him Bob, although his name doesn't matter).
Analyze Bob's siblings: Bob is one of the children in the family. The family consists of 7 girls and 3 boys.
Count Bob's sisters: From Bob's perspective, all the girls in the family are his sisters.
How many girls are in the family? We already determined there are 7 girls (Alice + her 6 sisters).
Count Bob's brothers: From Bob's perspective, the other boys in the family are his brothers.
How many boys are in the family? 3.
How many other boys are there besides Bob? 3 total boys - 1 (Bob himself) = 2 brothers. (This isn't asked, but it helps confirm the perspective shift).
Answer the specific question: The question asks how many sisters Bob (Alice's brother) has. We found there are 7 girls in the family. All 7 girls are his sisters.
Final Check: Does the answer make sense? Yes. All the children in a family share the same set of siblings, just categorized differently based on their own gender. All the boys have the same number of sisters, and all the girls have the same number of sisters.
Alice has 6 sisters (the other 6 girls).
Any brother has 7 sisters (Alice + the other 6 girls).
Final message:
Here's how to break down the problem:
1. Identify the total number of girls in the family: Alice (1) + her sisters (6) = 7 girls.
2. Identify the total number of boys in the family: Alice has 3 brothers.
3. Consider one of Alice's brothers: Any one of her brothers is part of the same family.
4. Count his sisters: From the brother's perspective, all the girls in the family are his sisters.
So, her brother has 7 sisters.
For anyone wanting a actual full-stack framework with sensible defaults, type checked sql+api+rsx, and overwhelming community approval, don't reinvent the wheel: It has existed for years and is called https://leptos.dev
(If you're just making a simple rest api backend, I still dig the simplicity of poem-openapi + sqlx)
I can't understand if rust on rails is a joke, badly written by gpt, or written by someone who doesn't understand both Rust and web development in general. It's full of typos and baffling design decisions. (shelling out to an external comand to generate rust code?! MACROS EXIST!)
This is the right answer.
How can you go back to a non-typed world after Rust I don't know.
I use html-node which has a typed submodule for even greater strictness.
I just build some valid html, make a string and write that to the output directory and get on with my life. Eg:
https://github.com/0atman/noboilerplate/
Templates... Rust functions
Flow control... Rust match expression
Abstraction... Rust modules
Html validation... Rust compiler
I like to think that in writing the html-node crate, Vidhan taught the compiler to speak html!
https://lib.rs/crates/html-node
Making queries like this checks the sql is valid at compile time by connecting to the real database and running it with demo data inside a rolled-back transaction!
"[If we all wear seat belts] we could end up in a less secure future, where nobody understands why, with red tape that prevents you from finding out what went wrong."
