frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

fp.

Show HN: In a single HTML file, an app to encourage my children to invest

https://roberdam.com/en/dinversiones.html
98•roberdam•4h ago•152 comments

Show HN: A tool to properly observe your LLM's context window

https://blog.nilenso.com/blog/2025/10/29/fight-context-rot-with-context-observability/
2•ath_ray•44m ago•0 comments

Show HN: AI app that reframes emotionally charged texts (featured in WIRED)

4•solfox•1h ago•1 comments

Show HN: Learn German with Games

https://www.learngermanwithgames.com/
106•predictand•1d ago•96 comments

Show HN: Research Hacker News, ArXiv & Google with Hierarchical Bayesian Models

https://sturdystatistics.com/deepdive-search
74•kianN•1d ago•23 comments

Show HN: Pipelex – Declarative language for repeatable AI workflows

https://github.com/Pipelex/pipelex
49•lchoquel•1d ago•12 comments

Show HN: Bash Screensavers

https://github.com/attogram/bash-screensavers
230•attogram•2d ago•77 comments

Show HN: HUD-like live annotation and sketching app for macOS

https://draw.wrobele.com/
52•tomaszsobota•1d ago•19 comments

Show HN: ISS in Real Time – 25 Years Aboard the International Space Station

https://issinrealtime.org
155•bfeist•3d ago•24 comments

Show HN: Spotify Browse Playlists per Country

https://www.musicmapify.com
3•alexandregcode•7h ago•0 comments

Show HN: SQLite Graph Ext – Graph database with Cypher queries (alpha)

https://github.com/agentflare-ai/sqlite-graph
31•gwillen85•20h ago•17 comments

Show HN: JSON Query

https://jsonquerylang.org/
147•wofo•2d ago•69 comments

Show HN: Dexto – Connect your AI Agents with real-world tools and data

https://github.com/truffle-ai/dexto
37•shaunaks•1d ago•7 comments

Show HN: Are You a Good Estimator?

https://estimator.dylancastillo.co/
15•dcastm•19h ago•8 comments

Show HN: Butter – A Behavior Cache for LLMs

https://www.butter.dev/
44•edunteman•1d ago•22 comments

Show HN: I wrote a short book about how AI app builders like Lovable work

https://www.amazon.com/dp/B0FY6XJ7X3
2•NabilChiheb•4h ago•0 comments

Show HN: MyraOS – My 32-bit operating system in C and ASM (Hack Club project)

https://github.com/dvir-biton/MyraOS
244•dvirbt•3d ago•56 comments

Show HN: Write Go code in JavaScript files

https://www.npmjs.com/package/vite-plugin-use-golang
156•yar-kravtsov•3d ago•47 comments

Show HN: Erdos – open-source, AI data science IDE

https://www.lotas.ai/erdos
84•jorgeoguerra•2d ago•33 comments

Show HN: Simple Video Resizer for iOS. No ads/tracking/in-app purchases

https://github.com/spieglt/VideoResizer
5•spieglt•20h ago•2 comments

Show HN: Automate robot data quality improvement

https://github.com/RoboticsData/score_lerobot_episodes
9•machinelearning•3d ago•2 comments

Show HN: Tiled Words, a daily puzzle inspired by board games and crosswords

https://tiledwords.com/
5•paulhebert•21h ago•5 comments

Show HN: Dlog – Journaling and AI coach that learns what drives wellbeing (Mac)

https://dlog.pro/
46•dr-j•2d ago•37 comments

Show HN: Git Auto Commit (GAC) – LLM-powered Git commit command line tool

https://github.com/cellwebb/gac
54•merge-conflict•2d ago•36 comments

Show HN: After Watching 30k People Get Laid Off, I Built This

https://www.ratetheculture.com/
7•monkee_kl•13h ago•1 comments

Show HN: Run Independent ATProto Networks in Docker or Kubernetes

https://github.com/blebbit/testnet
3•verdverm•20h ago•0 comments

Show HN: CapSlap – Local caption generation using Whisper

https://github.com/riseandignite/capslap
3•nick_wolf•20h ago•0 comments

Show HN: Ordered – A sorted collection library for Zig

21•habedi0•2d ago•6 comments

Show HN: I Built an LSP and CLI for Ron (Rusty Object Notation)

https://github.com/jasonjmcghee/ron-lsp
3•jasonjmcghee•20h ago•0 comments

Show HN: Shadcn/UI theme editor – Design and share Shadcn themes

https://shadcnthemer.com
134•miketromba•4d ago•40 comments
Open in hackernews

Show HN: Are You a Good Estimator?

https://estimator.dylancastillo.co/
15•dcastm•19h ago

Comments

more_corn•17h ago
If I say no and I’m wrong does that mean I’m right?
jmpavlec•17h ago
Took it (didn't go too well score-wise).

Would be nice to have the units for each question on top. Or in the input boxes themselves. I was on mobile and had to scroll down to see it. Mixing raw numbers and units of billions was confusing as well. There were definitely questions like the one about volume where I had no idea what a cubic mile really was conceptually (as opposed to a liter or something).

Regardless, reading about the study and comparing my own results was interesting.

I wonder if the inputs could be done using a slider given you are always selecting a range, that would be more intuitive.

dcastm•17h ago
Makes sense! I like the slider idea, but not sure if it’d introduce some bias to the results.
piaste•7h ago
One quick improvement would be to style the number boxes to include decimal separators. For a few answers I was squinting to check if I had typed six or seven zeroes, for example.
kykat•16h ago
I definitely messed up some units, particularly a million/billion. Two were really close to my estimates but still outside. One I could have gotten it right if I thinked a bit more.

4/10 overall, good reminder that we always have to double check. So easy to be wrong even when giving outrageously wide estimates

harshalizee•15h ago
Fun test. 4/10

I never realized how absolutely massive a blue whale can be!

galumptuous•3h ago
It would be nice to how wrong I was, as in, off by 1 order of magnitude or 5 orders of magnitude. Because I was super close on some of them.
madamelic•56m ago
Total volume of the Great Lakes

Your estimate:

10,000 to 25,000 cubic miles

Correct answer:

22,684 cubic miles

Uhhhh... pretty sure I was right and it marked it wrong.

---

Also, I think that marking answers right or wrong is the incorrect way to measure this. By deeming it right or wrong, you are making it trivia rather than estimation.

For instance, I estimated that Alexander the Great was born between 300 BCE and 100 BCE, it was marked wrong but the right answer is 356 BCE. That is a fairly accurate estimation still.

You should get rid of the Buzzfeed-esque "number people got right" and move towards measuring mean percent off from the correct answer so you could say like "Most people are within 30% of the right answer" or something like that. You should also make it where you can't game it by doing something like 0 to 100,000,000,000,000,000 and being told you are right: https://i.imgur.com/Ysnz1gr.png ;)