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Blizzard coped with World of Warcraft's blood plague and other disasters

https://www.pcgamer.com/how-blizzard-coped-with-world-of-warcrafts-blood-plague-and-other-early-d...
1•colinprince•2m ago•0 comments

Show HN: NamedLocal – does ChatGPT recommend your local business?

https://namedlocal.com/
1•only_jeff•3m ago•0 comments

Show HN: Design Slop Cop – How AI-generated is this website?

https://slopcop.adriankrebs.ch
1•hubraumhugo•3m ago•0 comments

Google loses EU court fight over $4.7B Android antitrust fine

https://www.aa.com.tr/en/economy/google-loses-eu-court-fight-over-47b-android-antitrust-fine/3984015
1•sharpshadow•4m ago•0 comments

I made a macOS desktop app to manage Nix-Darwin and Home Manager

https://github.com/darkmatter/nixmac
2•czxtm•5m ago•1 comments

DASH diet associated with lower risk of cognitive decline

https://jamanetwork.com/journals/jamaneurology/article-abstract/2845466
1•rawgabbit•5m ago•0 comments

We Need a 'Truth Campaign' for the AI Era

https://www.techpolicy.press/why-we-need-a-truth-campaign-for-the-ai-era/
1•cdrnsf•6m ago•0 comments

Generative AI creates delicious, sustainable, and nutritious burgers

https://arxiv.org/abs/2602.03092
1•sebg•6m ago•0 comments

Show HN: Debriefr – Discussions that unlock as you watch

https://debriefr.tv
1•jhedlund•7m ago•0 comments

The Importance of Humility in Software Development (2020)

http://humbletoolsmith.com/2020/08/10/the-importance-of-humility-in-software-development/
1•downbad_•10m ago•0 comments

Launch HN: Manufact (YC S25) – MCP Cloud

https://manufact.com
8•pzullo•11m ago•0 comments

Show HN: OSS Tests to Fix AI Gen Code. 110 Test for Major API – Supabase, Auth0

https://github.com/qualtyco/api-doctor
1•Reuben_Santoso•12m ago•0 comments

US employers still reluctant to add many jobs as hiring slows in June

https://apnews.com/article/jobs-economy-hiring-labor-49c7a993b394e6ae3f801c8e3c0d39dd
1•mattas•13m ago•0 comments

AI Increased Our Open PRs by 36%. That Wasn't the Whole Story

https://www.stackbuilders.com/insights/ai-in-software-delivery-whats-working-whats-hard-and-what-...
1•StackBuilders•13m ago•0 comments

Show HN: UATC – A Closed-Loop Controller to Prevent GPU OOM

https://github.com/sajjaddoda72-design/UATC
1•L_u_u_6•13m ago•0 comments

Evolution of moral expression in song lyrics

https://www.nature.com/articles/s41598-026-53778-9
1•sebg•14m ago•0 comments

I Tried Rips, the Card App Where Users Spend Thousands Chasing Pricey Pokémon

https://www.wired.com/story/i-tried-rips-the-card-pack-app-where-users-spend-thousands-chasing-pr...
1•reece_rogers•14m ago•0 comments

Reverse-engineering the Whoop 5.0 to work without a subscription in 24 hours

https://twitter.com/b_nnett/status/2061434000766382246
1•MrBuddyCasino•16m ago•0 comments

US deaths hit record low in 2025

https://san.com/cc/living-longer-in-america-u-s-deaths-hit-record-low-in-2025/
2•Cabal•18m ago•1 comments

The competing federal efforts behind America's 250th anniversary plans

https://www.govexec.com/management/2026/07/inside-competing-federal-efforts-behind-americas-250th...
1•everybodyknows•18m ago•0 comments

The last mile of AI-assisted coding is a signup form

https://trustysquire.ai/blog/the-last-mile-is-a-signup-form
1•lunchboxfortwo•19m ago•0 comments

Spain Orders Blacklist of Palantir from Public and Private Companies

https://clashreport.com/world/articles/spain-orders-blacklist-of-us-tech-giant-palantir-from-publ...
2•mgh2•20m ago•0 comments

T-Mobile moving virtual machines off VMware amid lawsuit

https://arstechnica.com/information-technology/2026/07/t-mobile-moving-tens-of-thousands-of-virtu...
1•Brajeshwar•22m ago•0 comments

Show HN: Oculor: find warm intro paths to investors

https://oculor.ai
1•fredrussias•22m ago•0 comments

Ask HN: What are you working on? (July 2026)

1•AznHisoka•23m ago•3 comments

Who am I? I'm an awkward fellow, after all

https://devz.cl/posts/who-am-i/
2•DanielVZ•23m ago•1 comments

Kavrol – predicts upcoming bill shortfalls before they happen

https://kavrol.com
1•Krishna142•24m ago•0 comments

SQLite Databases for Humans and Agents

https://marcobambini.substack.com/p/rethinking-databases-for-humans-and
1•marcobambini•24m ago•0 comments

I deduplicated 53,000 missing-persons reports from Venezuela's earthquake

https://medium.com/tilo-tech/i-deduplicated-53-000-missing-persons-reports-from-venezuelas-earthq...
3•Major_Grooves•25m ago•1 comments

The Imagination Curriculum (a reading list)

https://zoescaman.substack.com/p/the-imagination-curriculum
1•anarbadalov•25m ago•0 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/