frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

fp.

How I do and don't use agents

https://twitter.com/jessfraz/status/2019975917863661760
1•tosh•32s ago•0 comments

BTDUex Safe? The Back End Withdrawal Anomalies

1•aoijfoqfw•3m ago•0 comments

Show HN: Compile-Time Vibe Coding

https://github.com/Michael-JB/vibecode
1•michaelchicory•5m ago•0 comments

Show HN: Ensemble – macOS App to Manage Claude Code Skills, MCPs, and Claude.md

https://github.com/O0000-code/Ensemble
1•IO0oI•9m ago•1 comments

PR to support XMPP channels in OpenClaw

https://github.com/openclaw/openclaw/pull/9741
1•mickael•9m ago•0 comments

Twenty: A Modern Alternative to Salesforce

https://github.com/twentyhq/twenty
1•tosh•11m ago•0 comments

Raspberry Pi: More memory-driven price rises

https://www.raspberrypi.com/news/more-memory-driven-price-rises/
1•calcifer•16m ago•0 comments

Level Up Your Gaming

https://d4.h5go.life/
1•LinkLens•20m ago•1 comments

Di.day is a movement to encourage people to ditch Big Tech

https://itsfoss.com/news/di-day-celebration/
2•MilnerRoute•21m ago•0 comments

Show HN: AI generated personal affirmations playing when your phone is locked

https://MyAffirmations.Guru
4•alaserm•22m ago•3 comments

Show HN: GTM MCP Server- Let AI Manage Your Google Tag Manager Containers

https://github.com/paolobietolini/gtm-mcp-server
1•paolobietolini•23m ago•0 comments

Launch of X (Twitter) API Pay-per-Use Pricing

https://devcommunity.x.com/t/announcing-the-launch-of-x-api-pay-per-use-pricing/256476
1•thinkingemote•24m ago•0 comments

Facebook seemingly randomly bans tons of users

https://old.reddit.com/r/facebookdisabledme/
1•dirteater_•25m ago•1 comments

Global Bird Count Event

https://www.birdcount.org/
1•downboots•25m ago•0 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
2•soheilpro•27m ago•0 comments

Jon Stewart – One of My Favorite People – What Now? with Trevor Noah Podcast [video]

https://www.youtube.com/watch?v=44uC12g9ZVk
2•consumer451•30m ago•0 comments

P2P crypto exchange development company

1•sonniya•43m ago•0 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
2•jesperordrup•48m ago•0 comments

Write for Your Readers Even If They Are Agents

https://commonsware.com/blog/2026/02/06/write-for-your-readers-even-if-they-are-agents.html
1•ingve•49m ago•0 comments

Knowledge-Creating LLMs

https://tecunningham.github.io/posts/2026-01-29-knowledge-creating-llms.html
1•salkahfi•49m ago•0 comments

Maple Mono: Smooth your coding flow

https://font.subf.dev/en/
1•signa11•56m ago•0 comments

Sid Meier's System for Real-Time Music Composition and Synthesis

https://patents.google.com/patent/US5496962A/en
1•GaryBluto•1h ago•1 comments

Show HN: Slop News – HN front page now, but it's all slop

https://dosaygo-studio.github.io/hn-front-page-2035/slop-news
6•keepamovin•1h ago•1 comments

Show HN: Empusa – Visual debugger to catch and resume AI agent retry loops

https://github.com/justin55afdfdsf5ds45f4ds5f45ds4/EmpusaAI
1•justinlord•1h ago•0 comments

Show HN: Bitcoin wallet on NXP SE050 secure element, Tor-only open source

https://github.com/0xdeadbeefnetwork/sigil-web
2•sickthecat•1h ago•1 comments

White House Explores Opening Antitrust Probe on Homebuilders

https://www.bloomberg.com/news/articles/2026-02-06/white-house-explores-opening-antitrust-probe-i...
1•petethomas•1h ago•0 comments

Show HN: MindDraft – AI task app with smart actions and auto expense tracking

https://minddraft.ai
2•imthepk•1h ago•0 comments

How do you estimate AI app development costs accurately?

1•insights123•1h ago•0 comments

Going Through Snowden Documents, Part 5

https://libroot.org/posts/going-through-snowden-documents-part-5/
1•goto1•1h ago•0 comments

Show HN: MCP Server for TradeStation

https://github.com/theelderwand/tradestation-mcp
1•theelderwand•1h ago•0 comments
Open in hackernews

The Arithmetic of Braids (2022)

https://mathcenter.oxford.emory.edu/site/math108/braid_arithmetic/
34•marysminefnuf•2mo ago

Comments

MarkusQ•2mo ago
Nice presentation. I would probably have written it as an additive group (and then shown that the two strand braid was isomorphic with ℤ) as a further bidirectional intuition anchor (both "look, this new thing relates to something you are familiar with" and "this thing you are familiar with generalizes in unexpected ways").

Definitely liked the exploration of how theorems arise from speculation, and don't spring fully formed straight from Zeus's forehead.

geordiew•2mo ago
the problem with additive notation is that the braid group isn't commutative when number of strands is > 2.
MarkusQ•2mo ago
Excellent point. I tend to enjoy "garden path" pedagogy, leading the students to surprising twists and having them explore -- but it's important to lead and not mislead. So yeah, multiplicative notation is probably better.
fsckboy•2mo ago
this is pretty interesting but i don't think i can justify dropping everything to study it. but it did remind me of an adjacent "field", that guy who explores all the ways to lace shoes

(i think this is the one, but whereas old search engines would find it right away, now the results are full of "i made this" or me-too spam)

https://www.fieggen.com/shoelace/lacingmethods.htm

marysminefnuf•2mo ago
What i do is keep a list of 3 things every day i learn about braids and it just kinda adds up after a little bit.
srean•2mo ago
I was expecting Mathologer's book when you mentioned shoelaces. Thanks for the link

https://www.ams.org/books/mawrld/024/mawrld024-endmatter.pdf

> whereas old search engines would find it right away

One of my pet peeves is how Google makes it hard to get at the url to share directly from the search results. Yes there's the share link but that does not link to the original.

srean•2mo ago
Very nicely explained. I find the mathematics of weaving, knitting, braiding very dopamine squirt inducing.

It seems this interest is shared by many here on HN because there have been many threads on them. @dang had once compiled a list.

Let me repost one of mine where Richeson explores Maypole dancing through the lens of Braids.

https://news.ycombinator.com/item?id=44225324

max002•2mo ago
Im bad at mathematics, but this looks great. Gonna use it in my app to make 'braidy' connections :) thank you very much!