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Ask HN: What did you learn last month? (July 2026)

5•bhu1st•2h ago
What did you learn recently? What concept finally "clicked" for you?

Comments

WheelsAtLarge•1h ago
Current AI can hack servers better than most hackers.
maerF0x0•1h ago
I've been working on the course https://www.coursera.org/specializations/machine-learning-in... . No news to anyone on here, but new to me.
al_borland•48m ago
I used Python webview to make some little desktop utilities.

Most modern frameworks feel like they have so much bloat and overhead. I wanted to make some simple things is a simple way, and it seemed like a good solution for that.

alok-g•25m ago
Quantum Mechanics (ongoing), Sturm-Lioville theory, Special Relativity (ongoing), Tensors (going towards General Relativity)

What finally clicked: Hermitian matrix, self-adjoint operators, quantum operators for energy and momentum, the Metric (for modeling spacetime curvature), etc.

Ask HN: What did you learn last month? (July 2026)

5•bhu1st•2h ago•4 comments

Tell HN: HackerOne Announces Mandatory identity verification

16•0xmattf•8h ago•1 comments

Everything that happens in a US airport is under duress

14•dfps•10h ago•17 comments

Ask HN: What's the Point of Your Startup?

8•sawyers•10h ago•12 comments

Ask HN: When a post of yours does well, do you know why?

4•john_builds•11h ago•4 comments

Strategic Oil Reserves Down to a Record Low Two-Week Supply

17•megamike•1d ago•17 comments

DeepSeek API service will soon adopt a peak-valley pricing strategy

2•sschueller•8h ago•0 comments

Ask HN: Has Claude Code been (mostly) usable for you?

2•mark_l_watson•8h ago•5 comments

Ask HN: What E-Reader to Buy?

5•conor_f•12h ago•8 comments

Time for OpenAI and Anthropic to take a leaf from Microsoft's book?

2•chrisjj•5h ago•1 comments

Ask HN: What are you using for LLM inference in production?

6•chrislim•16h ago•4 comments

Ask HN: Can Apple Ever Be Disrputed?

6•Taikhoom2010•23h ago•19 comments

Robotics development made dead simple (open source)

22•Ekami•5d ago•7 comments

Ask HN: What former "must-have" AI agent skills have you deprecated?

5•lpjstack•1d ago•1 comments

Ask HN: Navigating Source Code (especially on large projects)

6•thekey•1d ago•3 comments

Ask HN: Give Me Your Earworm

3•t-3•9h ago•4 comments

Stripe's opt-out Radar price increase dressed up as a free trial

9•rapind•1d ago•1 comments

I built an independent peptide testing lab that accepts mailed samples

6•peptidelabs•1d ago•1 comments

Ask HN: After 8 Years of Failed Apps, Should I Give Up?

6•asoomi07•1d ago•13 comments

Ask HN: Do older programmers/CS academics view AI safety as a form of arrogance?

6•amichail•1d ago•14 comments

Ask HN: What are some promising fields in computer science in the next 5 yrs?

3•anonymoosestdnt•10h ago•3 comments

Can LLMs have an "accent" like second language speakers?

3•hmokiguess•1d ago•4 comments

You've reached the end!