5. The 7-2-5 Challenge
"Subtract 7 from 100, then keep subtracting 2, then 5, then again 7..."
It’s not just math — it’s a focused brain game. This shifting subtraction pattern forces your memory and attention to stay aligned, training your brain like a tightrope walker trains balance.
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If you forget things then you must read until the end. Fifth one is interesting! Your brain is not just a thinking machine — it’s like a muscle, and just like your arms or legs, it needs daily exercise to stay sharp, strong, and swift. Let's go through each exercise!
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Similar ideas to 5. The 7-2-5 Challenge
Challenge 2: Connection Management
- Each connection is managed by an Akka actor.
- Actors are so lightweight that there can be millions of them on a single system. Moreover, all of them can be served by a small number of threads, proportional to the number of cores. This...
The challenge
In 1960, Theo Geisel, known as Dr. Seuss, was challenged to write an entertaining children's book using only 50 different words. The result was the best-selling book, Green Eggs and Ham. It sold over 200 million copies.
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