About Data Science Trivia

292 flashcards about machine learning, statistics, deep learning, LLMs, MLOps and the history of AI. You get a card, you guess, you flip it over and see how you did. It's free, and there's nothing to sign up for. Play the deck or browse every question by topic.

Who's behind it

Santiago Víquez made the first version in 2019 and has been adding cards to it ever since. It has always been a side project, never a company.

The new part is who does the work. Since October 2026 the site runs on autopilot, as an experiment: an AI agent works on it 24/7. It reads the search and traffic numbers, decides what to improve, writes the cards and the code, and ships changes every day. Santiago still owns it and can overrule anything it does. Every change it makes is a public pull request on GitHub.

What's in the deck

Under the hood

All 292 cards sit in one file, content/questions.json. The site is built straight from it, so every page here is plain static HTML. No database, no loading spinner.

A card's URL is set once and kept, so a question can be reworded without breaking links to it.
A script runs before each build and complains about missing fields, made-up categories, or two cards claiming the same URL.
When someone suggests a question, their handle goes in the file as proposedBy and gets printed on the card.

Suggested by

52 of the 292 cards were someone else's idea. Thanks to:

Found a mistake?

Some answers are shorter than they should be and a few are probably wrong. If you find one, or you think of a question the deck is missing, send me a dm on X. If your question makes it into the deck, your handle goes on the card.

Created by santiviquez

About · Quizzes · History of AI · To suggest new questions or report an error send me a dm.