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Notes on Optimizing Battery Life

https://maurycyz.com/misc/battery/
1•wrxd•2m ago•0 comments

Ask HN: Entrepreneurs, how long did it take you to succeed?

4•asdev•4m ago•0 comments

Show HN: Rig – Local-first code graph for coding agents, in one npx command

https://github.com/Astralchemist/rig
1•akashi_dev•5m ago•0 comments

Mathematically Accurate Interior Quiz

https://mystofa.com/quizes/design-test
1•assorium•8m ago•0 comments

Email triage with an embedding-based classifier

https://adamwiggins.com/posts/triage-embedding-classifier/
1•privong•9m ago•0 comments

OpenAI Privacy Policy Update

https://www.diffchecker.com/GVastzQG/
2•hnroo99•12m ago•1 comments

Green Paradox

https://en.wikipedia.org/wiki/The_Green_Paradox
1•leonidasrup•14m ago•0 comments

US troops are reportedly being targeted using location data, Pentagon says

https://www.militarytimes.com/news/pentagon-congress/2026/05/28/us-troops-are-reportedly-being-ta...
4•jethronethro•14m ago•0 comments

Reachy Mini bot goes local

https://huggingface.co/blog/local-reachy-mini-conversation
1•homarp•22m ago•1 comments

It's "Fine" for Me

https://codeberg.org/lievenmoors/fine
1•lievenmoors•24m ago•1 comments

I Made a Million Dollar Product from My Dorm Room (2025)

https://nick.winans.io/blog/nice-nano/
1•mattrighetti•24m ago•0 comments

Show HN: Open-source browser agent that runs 24/7

https://github.com/sediman-agent/sediman-browse
1•JasonHEIN•28m ago•0 comments

Amazon Quietly Changed the Terms of Kindle Security Updates

https://blog.the-ebook-reader.com/2026/05/26/amazon-quietly-changed-the-terms-of-kindle-security-...
2•DavideNL•29m ago•0 comments

The End of Free Tokens

https://douwe.com/blog/2026/0518/
5•dosinga•29m ago•0 comments

Social Animus

https://justine.lol/animus/
5•jart•30m ago•0 comments

Durable links between everything you work on

https://www.mjanssen.nl/linkano/index.html
1•marc0janssen•30m ago•0 comments

More Dads Are Scaling Back at the Office for Kids and Housework

https://www.wsj.com/lifestyle/careers/more-dads-are-scaling-back-at-the-office-for-kids-and-house...
2•Anon84•31m ago•0 comments

Why Tesla's AI trainers don't trust its self-driving tech – or its safety stats

https://www.reuters.com/investigations/why-teslas-ai-trainers-dont-trust-its-self-driving-tech-or...
3•JumpCrisscross•32m ago•0 comments

SpaceX and the Zuckerberg Discount

https://www.ft.com/content/e0485f5a-e50a-4dea-9e42-3dc38d82111b
3•JumpCrisscross•34m ago•0 comments

Astro 6.4: pluggable Markdown pipeline, Rust-based Markdown processor and more

https://astro.build/blog/astro-640/
1•chadpaulson•34m ago•0 comments

Airbnb host alleges $12k in damages after SF startup tested a robot in his house

https://www.sfgate.com/tech/article/airbnb-startup-robot-damages-lawsuit-22279560.php
2•randycupertino•37m ago•1 comments

Others build agent memory, and what I took from each

https://falconer.com/notes/how-others-build-agent-memory/
2•aryamanagraw•38m ago•1 comments

Trump Regulator Moves to Drop Case That Drew Ire of Winklevoss Twins

https://www.wsj.com/politics/policy/trump-regulator-moves-to-drop-case-that-drew-ire-of-winklevos...
4•JumpCrisscross•39m ago•0 comments

Ask HN: Has AI-generated code changed your perspective on "tech debt"?

1•mavsman•39m ago•0 comments

The Art of Keeping Business Logic Honest

https://www.juststeveking.com/articles/the-art-of-keeping-business-logic-honest/
1•jlahijani•39m ago•0 comments

2004 RuneScape fit a multiplayer RPG into 56k dial-up

http://jkm.dev/posts/how-2004-runescape-fit-a-multiplayer-rpg-into-56k-dialup/
1•ozarkerD•40m ago•0 comments

Two Ways to Draw Infinite Jest's Sierpinski Gasket

https://www.chiply.dev/post-ij-sierpinski
2•chiply•41m ago•0 comments

eBPF rootkits and the Volatility blind spot in Linux memory forensics

https://andreafortuna.org/2026/05/27/ebpf-rootkits/
1•speckx•41m ago•0 comments

AI used to identify miscreant judge

https://abovethelaw.com/2026/05/judiciary-tried-to-hide-sex-in-chambers-judges-name-it-left-a-roa...
2•mandevil•42m ago•1 comments

Many Tokens Did You Burn Today

https://idiallo.com/blog/how-many-tokens-did-you-burn-today
2•speckx•42m ago•1 comments
Open in hackernews

Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•1y ago

Comments

trane_project•1y ago
> Nonetheless, Bloom was on to something: Tutoring and mastery learning do have a degree of experimental support, and fortunately it seems that carefully designed software systems can completely replace the instructional side of traditional teaching, achieving better results, on par with one to one tutoring. However, designing them is a hard endeavour, and there is a motivational component of teachers that may not be as easily replicable purely by software.

I've been working on an implementation of mastery learning and other related techniques called Trane (https://github.com/trane-project/trane/) for the past three years or so. Mastery learning is the main one, but it also integrates spaced repetition, interleaving, mixing difficulties, and reward propagation (doing well or bad in an exercise affects how related exercises are scheduled).

I think it works pretty well, but you need to pair it with proper pedagogy of the skill you want to learn and the proper curriculum. The latter is the hardest part, so it's being my main limitation. I've used some external resources to build courses, and they work well, but obviously it would work much better with a full curriculum built from the ground up.

Currently working on Pictures Are For Babies (https://picturesareforbabies.com/), which is meant to do just that for literacy. I am hoping to do a first release soon. As for the motivation angle, the solution in this particular instance is fairly simple. Use the software to enforce scheduling andpedagogy,y and a human tutor to provide emotional and social support. This division allows any literate person to become an effective tutor with a few hours of training.

I am hoping that the average student can complete the whole curriculum in five years. That would mean that (assuming they start at between 4 and 5 years old), the average student would have college-level reading and writing skills by the time they are nine or ten.

Most complete explanation so far is in the pedagogy page: https://picturesareforbabies.com/home/pedagogy/