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The fashion industry that is tech

https://www.baldurbjarnason.com/2025/the-fashion-that-is-tech/
1•random_duck•5m ago•1 comments

Adsly – a marketplace for direct sponsorships and partnerships

https://adsly.io
1•ksl_dev•7m ago•1 comments

Can you legally defend yourself against an attacking police officer? (2017)

https://law.stackexchange.com/questions/16695/can-you-legally-defend-yourself-against-an-attackin...
2•zahlman•7m ago•0 comments

Keifu – A TUI for navigating commit graphs with color and clarity

https://github.com/trasta298/keifu
1•indigodaddy•8m ago•0 comments

Satellogic to Deliver Two Mark V High-Resolution Satellites

https://investors.satellogic.com/news-releases/news-release-details/satellogic-signs-18mm-usd-agr...
1•wslh•10m ago•0 comments

Acetaminophen during pregnancy does not increase risk of autism, ADHD or IDs

https://medicalxpress.com/news/2026-01-acetaminophen-pregnancy-autism-adhd-intellectual.html
1•bikenaga•11m ago•0 comments

The One Trick to 10x Your Database Performance [video]

https://www.youtube.com/watch?v=934J1v_B238
1•p0u4a•20m ago•0 comments

LLMs Are Lagging Indicators

https://hollisrobbinsanecdotal.substack.com/p/llms-are-lagging-indicators
1•HR01•22m ago•0 comments

Show HN: Claude-Config – Dotfiles for Claude Code

https://github.com/sumchattering/claude-config
1•sumeruchat•32m ago•0 comments

Show HN: WPTR – We built an automated audit lab for Headless WordPress

https://www.wptr.net
1•gezginweb•32m ago•0 comments

Show HN: Commander AI – Mac UI for Claude Code

https://commanderai.app/
1•krzyzanowskim•32m ago•0 comments

Structural Stability and Morphogenesis: An Outline of a General Theory of Models [pdf]

https://uberty.org/wp-content/uploads/2015/12/Thom-Structural-Stability-and-Morphogenesis.compres...
1•foster_nyman•33m ago•1 comments

Bank opacity and deposit rates

https://www.nber.org/papers/w34618
3•hhs•36m ago•0 comments

Bazalgette Embakment

https://diamondgeezer.blogspot.com/2026/01/bazalgette-embakment.html
1•zeristor•37m ago•0 comments

The past, present and future of LLM coding

https://www.hermandaniel.com/blog/20260116-my-take-on-LLM-coding/
2•kekqqq•38m ago•1 comments

HTTP Instagram.com Japouni_02

1•chahinee•38m ago•0 comments

Show HN: Super AI Markets – Testing Ground for AI Shopping Agent Security

https://superaimarkets.com/
1•jmchugh9•41m ago•0 comments

Why Americans Can't Buy the Best Electric Car

https://www.nytimes.com/2025/07/08/opinion/byd-china-car-ev.html
5•zzzeek•42m ago•3 comments

How Nature Works: The Science of Self-Organized Criticality [pdf]

https://neurocurso.wordpress.com/wp-content/uploads/2016/05/per-bak_how-nature-works_-the-science...
1•foster_nyman•43m ago•0 comments

Langauge Modeling, Part 3: Vanilla RNNs

https://connorjdavis.substack.com/p/language-modeling-part-3-vanilla
1•cjamsonhn•47m ago•0 comments

Simulario – A physics simulation based game

https://x.com/ZoldenGames
2•LordSeptum•52m ago•0 comments

Why 'basic science' is the foundation of innovation

https://news.berkeley.edu/2026/01/15/from-quantum-theory-to-the-modern-laser-why-basic-science-is...
1•hhs•52m ago•0 comments

Engine-Bench: Benchmarking Coding Agents on TCG Game Engine Tasks

https://github.com/JoshuaPurtell/engine-bench
1•JoshPurtell•54m ago•0 comments

FLUX.2 [Klein]: Towards Interactive Visual Intelligence

https://bfl.ai/blog/flux2-klein-towards-interactive-visual-intelligence
2•GaggiX•54m ago•0 comments

Caliper: Right-size your CI runners

https://www.attune.inc/blog/caliper
1•greenRust•54m ago•0 comments

Babyfiend.net

https://babyfiend.net/
1•martialg•57m ago•0 comments

Why So Many Journalists Fear to Look Within

https://matthewgreenglobal.substack.com/p/transforming-global-media-james-scurry
2•rendx•58m ago•0 comments

Iran restores sending and receiving SMS

https://www.iranintl.com/en/202601163057
2•ukblewis•59m ago•1 comments

Mysterious 'iron bar' discovery in space may reveal Earth's future

https://www.bbc.com/news/articles/ckgxlvv0wdko
3•mooreds•1h ago•0 comments

Ask HN: OfficeHours and AlphaSense Spam

1•holografix•1h ago•0 comments
Open in hackernews

Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•7mo ago

Comments

trane_project•7mo 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/