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Show HN: Dictámelo, MIT-licensed voice dictation with local and cloud models

https://github.com/sarrazola/dictamelo
1•sarrazola00•1m ago•0 comments

Democrats Are Plotting Government Efficiency in a Post-DOGE World

https://www.notus.org/technology/democrats-government-efficiency-post-doge
1•kadal•1m ago•1 comments

Astra vs. Fable on Vending-Bench: More Money, More Aligned

https://andonlabs.com/blog/gpt-6-astra-vending-bench
1•Tiberium•2m ago•0 comments

Liquid Glass Radar

https://liquidglassradar.com
1•vpgn•2m ago•0 comments

Rust debugging survey 2026 results

https://blog.rust-lang.org/2026/09/07/rust-debugging-survey-2026-results/
1•birdculture•5m ago•0 comments

The Vacuum Tube That Almost Beat the Transistor – TubeTimeUS [video]

https://www.youtube.com/watch?v=XcNLQskUcpk
1•rasz•5m ago•0 comments

The Golden Age of Apple Software Ended with Snow Leopard

https://lightyearlabs.ca/blog/snow-leopard/
2•tmanok•6m ago•0 comments

TCP Path Diagnostics

https://curl.realhackers.org/
1•Bender•8m ago•1 comments

The Pebble Time 2 proves smartwatches got worse, not better

https://www.howtogeek.com/pebble-time-2-review/
2•datakan•9m ago•0 comments

What do Visa and Mastercard do? An intro to card networks

https://tautology.town/2026/06/01/card-networks.html
1•evakhoury•10m ago•0 comments

Can Coding Agents Play Pokemon?

https://bkal01.github.io/posts/radical-red/
1•bkal01•10m ago•0 comments

Doomfly

https://fly-brain-doom.awormuth.chatgpt.site
1•T-A•11m ago•0 comments

Testing race conditions with memory access tracing & stack-based delay injection

https://projectzero.google/2026/09/maccconc-race-condition.html
1•matt_d•11m ago•0 comments

Chdb Postgres extension: High-performance imports from cloud storage

https://clickhouse.com/blog/introducing-chdb-postgres
1•saisrirampur•15m ago•0 comments

Show HN: See all stocks traded by Donald Trump

https://www.capitolisation.com/members/trump
2•Alannnn•15m ago•0 comments

Something's Happening to the Ozone Hole [video]

https://www.youtube.com/watch?v=yWgHx0HE8m8
2•gmays•15m ago•0 comments

Public WebGPU Benchmarking powered by vGPU

https://web3dsurvey.com/benchmark
2•bhouston•16m ago•0 comments

First ever macOS Core Location Spoofing

https://github.com/TimBitBox/mac-location-spoofer
1•Gab01•17m ago•0 comments

Runway Reaches 200M ARR

https://bloomberg.com/news/articles/2026-09-08/ai-startup-runway-hits-200-million-in-annual-recur...
1•utiiiD•18m ago•0 comments

Moving to Graviton 5 halved our ClickHouse query latency

https://www.dash0.com/blog/migration-to-graviton-5-what-upgrading-our-clickhouse-cluster-actually...
2•ishener•19m ago•0 comments

GrapheneOS on AI Usage

https://grapheneos.social/@GrapheneOS/117236529351603001
2•garo-pro•20m ago•0 comments

What Should I Do to Win Back the Love of My Boyfriend?

https://etechx.co.ke/what-should-i-do-to-win-back-the-love-of-my-boyfriend
2•manyik•20m ago•0 comments

Show HN: AI Mood Tracker and Journal for iPhone

https://apps.apple.com/us/app/moon-mood-tracker-journal/id6773049470
3•losteden1•22m ago•0 comments

Robots "protest" in Warsaw to demand regulation of AI and automation

https://notesfrompoland.com/2026/09/08/robots-protest-in-warsaw-to-demand-regulation-of-ai-and-au...
2•giuliomagnifico•22m ago•0 comments

Versign Announce New .web Domain Extension

https://investor.verisign.com/news-releases/news-release-details/verisign-announces-delegation-web/
1•a_paddy•22m ago•0 comments

OpenAI Just Claimed a Math Discovery. Some Academics Are Crying Foul

https://www.wired.com/story/openai-navier-stokes-math-discovery-academics/
2•olalonde•22m ago•0 comments

EU and Canada Plan Far-Reaching Alliance to Strengthen Partnership

https://www.bloomberg.com/news/articles/2026-09-08/eu-and-canada-plan-far-reaching-alliance-to-st...
3•helsinkiandrew•23m ago•1 comments

Ask HN: Is there anything worth developing with AI?

1•mf2hd•26m ago•3 comments

Show HN: I made a moving map of SF's trains in real time

https://sf-motion-s9et3.reachpad.app/
1•sakuraiben•27m ago•0 comments

MiniPACS

https://minipacs.net/
1•tr00x•28m 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/