What did you learn recently? What concept finally "clicked" for you?
Ask HN: What did you learn last month? (July 2026)
1–10 of 21 posts
Re: Ask HN: What did you learn last month? (July 2026)
#2Current AI can hack servers better than most hackers.
Re: Ask HN: What did you learn last month? (July 2026)
#3I've been working on the course https://www.coursera.org/specializations/machine-learning-in... . No news to anyone on here, but new to me.
Re: Ask HN: What did you learn last month? (July 2026)
#4I 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.
Re: Ask HN: What did you learn last month? (July 2026)
#5Quantum 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.
Re: Ask HN: What did you learn last month? (July 2026)
#6[flagged]
Re: Ask HN: What did you learn last month? (July 2026)
#7I have been learning langchain or langgraph for making good Agentic AI workflows.
Re: Ask HN: What did you learn last month? (July 2026)
#8While reading the Jelly-UI source I learned that you can use slot tags to effectively punch holes in the shadowdom on a web component. The elements passed in as component children can be assigned to a slot[1] within the component's shadowdom, and the external styles on them continue untouched.
1. https://github.com/jelly-org/ui/blob/main/src/components/res...
Re: Ask HN: What did you learn last month? (July 2026)
#9Quantum 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.
What's the story of the Hermitian matrix and self adjoint operators?
Re: Ask HN: What did you learn last month? (July 2026)
#10[flagged]