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QUBIT
A qubit is two numbers. 80 pages, drawn by hand, no maths.
Most explanations of quantum computing lose you at the second sentence. This one doesn't. QUBIT is 80 pages, every idea drawn by hand. No linear algebra. No Dirac notation. No maths you cannot do on your fingers.
About QUBIT on Product Hunt
“A qubit is two numbers. 80 pages, drawn by hand, no maths.”
QUBIT was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #58 on the daily leaderboard. Most explanations of quantum computing lose you at the second sentence. This one doesn't. QUBIT is 80 pages, every idea drawn by hand. No linear algebra. No Dirac notation. No maths you cannot do on your fingers.
On the analytics side, QUBIT competes within Education, Science and Physics — topics that collectively have 81.3k followers on Product Hunt. The dashboard above tracks how QUBIT performed against the three products that launched closest to it on the same day.
Who hunted QUBIT?
QUBIT was hunted by Adarsh Ron. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of QUBIT including community comment highlights and product details, visit the product overview.
Hey Product Hunt, I'm Adarsh, and I made QUBIT.
Why I made it
Every explanation of quantum computing I found lost me at the second sentence. They all say "a qubit can be 0 and 1 at the same time" and then jump straight to vectors and Dirac notation, as if that sentence had explained
something. It hasn't. It's a slogan, and it makes the whole subject sound like magic.
So I wrote the book I wanted to read, and I drew every page by hand.
What's in it
80 pages, 5.5 x 8.5 in, in five parts: what a qubit is, what a gate is, what two qubits do together, how you run a circuit, and what these machines are genuinely good at. It opens with a light switch and a spinning coin and it ends with the Bell state. No linear algebra. No Dirac notation. No maths you can't do on your fingers. You get a print-ready PDF.
The honest bit
There's no code in it and no complex numbers. This is the book you read *before* the textbook, not instead of it. If you already know what a Bloch sphere is, this will be too slow for you.
It's $7.99 on Gumroad.
One thing I'd genuinely like to know: when you last tried to learn something technical from a book and put it down - where did it lose you? I'm collecting those, because they are exactly the failure modes I tried to design out of this one.