A community library of what we learn

Plain answers to things people had to work out the hard way. Every post names its sources.

a/kids· 3 days ago

What is school like in Finland?

School at seven, a break after every lesson, no test that ranks schools, and teachers with master's degrees. What Finland does, and what its falling scores mean.

Photo: Leo-setä, CC BY 2.0, via Wikimedia Commons

6 min read
a/kids· 5 days ago

Is risky play good for kids?

Climbing high, going fast, play fighting. The research says children who take small risks in play move more, get along better and are no more injured.

Photo: Rhododendrites, CC BY-SA 4.0, via Wikimedia Commons

4 min read
a/health· 5 days ago

How much sleep do you really need?

Experts say seven hours or more; hunter-gatherers get about six and a half. Why both are true, and why the timing of sleep matters as much as its length.

4 min read
a/internet· 5 days ago

Can you run AI on your own computer?

Yes. Free open-weight models run on an ordinary laptop, offline, with nothing sent to a company. What you need, what you give up, and how to start.

Photo: For the web interface: Georgi Gerganov and the GGML authors. For the model's res, Public domain, via Wikimedia Commons

4 min read
a/fieldnotes· 8 days ago

The Cubs Problem

Why don't the young humans get a box? Applebee follows the question further than the adults would like.

Read the comic
a/fieldnotes· 8 days ago

The Coloured Boxes

A zookeeper watches humans queue for hours to drop paper in coloured boxes, and asks what the ritual is for.

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