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What it was like to send an email back in 1984 (2016)

https://www.businessinsider.com/video-what-early-email-looked-like-2016-3
1•leecoursey•1m ago•1 comments

Show HN: workz – one command to make any Git worktree a full dev environment

1•rohansx•3m ago•0 comments

Dwarkesh Patel Interview with Gwern

https://www.dwarkesh.com/p/gwern-branwen
1•Curiositry•3m ago•0 comments

Big Medicine Can Learn from the Cheesecake Factory (2012)

https://www.newyorker.com/magazine/2012/08/13/big-med
1•ripe•6m ago•0 comments

Full-Stack Dev's Internal Thought Process

https://www.youtube.com/watch?v=xE9W9Ghe4Jk
1•OhMeadhbh•6m ago•1 comments

Online ads just became the internet's biggest malware machine

https://www.businessinsider.com/programmatic-ads-overtake-email-top-malware-vector-the-media-trus...
1•speckx•10m ago•1 comments

Hiring Dread

https://coderjerk.com/blog/hiring-dread
1•ddevine•13m ago•0 comments

Show HN: Treemap Firmware Bloat Visualizer (Rust/WebASM)

https://merck.substack.com/p/elfvis-binary-size-treemap-viewer
1•clbrmbr•15m ago•0 comments

DuckDuckGo is anti-small web (because of Bing)

https://landenlove.com/duckduckgo-is-anti-small-web-because-of-bing/
1•LandenLove•20m ago•0 comments

Software architecture diagramming tool launched on AlternativeTo.net

https://alternativeto.net/software/savnet/about/
2•oscarricardosan•23m ago•0 comments

What air pollution does to the human body

https://www.popsci.com/environment/what-air-pollution-does-to-the-human-body/
2•wjb3•25m ago•0 comments

AI agents inside M365 and Google Workspace

https://o11.ai
1•aoztanir•27m ago•1 comments

Googleworkspace/CLI

https://github.com/googleworkspace/cli
2•gonzalovargas•27m ago•0 comments

Package Managers Need to Cool Down

https://nesbitt.io/2026/03/04/package-managers-need-to-cool-down.html
2•zdw•28m ago•0 comments

Every AI code review vendor benchmarks itself, and wins

https://deepsource.com/blog/ai-code-review-benchmarks
1•dolftax•29m ago•0 comments

Hey ChatGPT write me a fictional paper: LLMs willing to commit academic fraud

https://www.nature.com/articles/d41586-026-00595-9
1•bookofjoe•29m ago•1 comments

Show HN: A rec.us CLI for your Claw

https://github.com/jakajancar/recus
1•JakaJancar•30m ago•0 comments

Code Mode: Giving AI Agents an API in 1k Tokens (With Demos) [video]

https://www.youtube.com/watch?v=-ZikRWR1Gb4
2•emot•32m ago•1 comments

The Death of the Downvote

https://nathankyoung.substack.com/p/the-death-of-the-downvote
1•mitka_y•34m ago•0 comments

Computer run on human brain cells learned to play 'Doom'

https://www.popsci.com/technology/human-brain-cell-computer-plays-doom/
4•wjb3•36m ago•0 comments

The Thucydides Trap Is Coming for America

https://www.nytimes.com/2025/11/21/opinion/america-china-trump-g20.html
4•KnuthIsGod•38m ago•0 comments

Workers: Autonomous Agents in Slack

https://www.tagworkers.com/
2•handfuloflight•38m ago•0 comments

48x32, a 1536 LED Game Computer

https://jacquesmattheij.com/48x32-introduction/
2•duck•38m ago•0 comments

We can't launch our trash into the sun. But why?

https://www.popsci.com/science/launch-trash-into-the-sun-video/
1•wjb3•42m ago•0 comments

Tim Sweeney signed away his right to criticize Google until 2032

https://www.theverge.com/news/889595/tim-sweeney-signed-away-his-right-to-criticize-google-until-...
2•0in•45m ago•0 comments

Our AI code reviewer found a CVSS 10.0 authentication bypass in pac4j-JWT

https://www.codeant.ai/security-research/pac4j-jwt-authentication-bypass-public-key
1•Amartya_jha•46m ago•1 comments

Setting Up Preview Envs to Test Agent PRs Without Ever Pulling Locally

https://www.piersonmarks.com/posts/testing-agent-written-prs-in-the-cloud
2•PiersonMarks•49m ago•0 comments

Anthropic CEO calls OpenAI's messaging around military deal 'straight up lies'

https://techcrunch.com/2026/03/04/anthropic-ceo-dario-amodei-calls-openais-messaging-around-milit...
45•SilverElfin•58m ago•13 comments

Jeffrey Epstein: The Transhumanist Pedophile Who Hoped to Live Forever

https://www.truthdig.com/articles/jeffrey-epstein-the-transhumanist-pedophile-who-hoped-to-live-f...
5•cdrnsf•59m ago•0 comments

Apparently chardet got Claude to rewrite the codebase from LGPL to MIT

https://chaos.social/@Foxboron/116170859737134271
2•gaius_baltar•59m ago•0 comments
Open in hackernews

Bloom's two sigma problem (2020)

https://nintil.com/bloom-sigma
8•Tomte•9mo ago

Comments

trane_project•9mo 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/