Quantum Country
Quantum Country by Andy Matuschak and Michael Nielsenby Andy Matuschak and Michael Nielsen
Ranked 2 of 3 online books by recommenders
A free online introduction to quantum computing and quantum mechanics, written by Michael Nielsen and Andy Matuschak, that people recommend as a gentler starting point.
A free online introduction to quantum computing and quantum mechanics, written by Michael Nielsen and Andy Matuschak, that people recommend as a gentler starting point.
5 people gave an opinion
- recommend it
- 5
- criticize it
- 0
- approval share
- 100%
Recommended in 2 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: recommended
- February 2026: not recommended
- March 2026: not recommended
- April 2026: recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: not recommended
- August 2026: not recommended
- September 2026: not recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 5 people recommend itNeeds 10 or more, not met.
- Nobody criticizes itNeeds 2 to 1 or better, met.
- Recommended in 2 of 13 monthsNeeds 4 or more, not met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Gentle introduction to quantum computing
“One such gentler source is the free online text I wrote with Andy Matuschak”
Comment from 14 Jan 2026 in “Ask HN: Quantum Computation, Computers and Programming” Free online text
“One such gentler source is the free online text I wrote with Andy Matuschak”
Comment from 14 Jan 2026 in “Ask HN: Quantum Computation, Computers and Programming” Praised as an amazing post
“that amazing post from several years ago”
Comment from 13 Apr 2026 in “Gas Town Notes and Spaced Repetition Prompts”
Other online books people recommend
The two most recommended other online books, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| LearnixOS | 10 | 6 | 63% | 1 | — | — |
| Quantum Countryby Andy Matuschak and Michael NielsenThis page | 5 | 0 | 100% | 2 | — | — |
| Data Engineering Bookby datascale-ai | 4 | 2 | 67% | 1 | — | — |
What people said
3 of the 5 comments that mention it, newest first. Each links to the original comment.
“that amazing post from several years ago”
“quantum.country by Nielsen”
“One such gentler source is the free online text I wrote with Andy Matuschak”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.