The Viafocus library
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Two Ways to Be Fast
25 questions · 15 min

The Darkroom Test — How can you tell if a photo or video is AI-generated?
31 questions · 15 min

One More Tree
16 min

The Receipt That Won't Stop — How does compound interest work, and what does spending really cost you?
32 questions · 14 min

Grandpa Never Loses — How to always win the 21 matchstick game (Nim)
22 questions · 15 min

Where the Four Hours Went — How social media keeps you scrolling (and who gets paid)
31 questions · 14 min

Four Marks — How do you survive lost in the wild, and what kills you first?
30 questions · 16 min

Who Really Won? — How votes get counted, and why the rule can change the winner
24 questions · 14 min

Frostvakten — hur räknar man med negativa tal på tallinjen?
27 questions · 15 min

The Stitching Machine — How does AI learn from examples, and why does it make things up?
35 questions · 15 min

The Pump on Broad Street
19 questions · 16 min

Åttan på vaxkakan — hur fungerar bidansen och hur talar bin om var blommorna finns?
15 min
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