The 13 thinking tools da Vinci, Feynman, and Einstein all used. Don't just read — measure, and train.
Reading a book won't grow your thinking. Thinking is a muscle, not knowledge — you have to measure it and repeat.
Measure
See where you stand today as a number with a 10-min diagnostic
Train
Repeat by difficulty, starting with your weakest tool
Re-measure
Check again how much you've grown
The 10-minute diagnostic auto-scores your fundamentals in Observing, Analogizing, and Abstracting with answer-key mini-tests. After the diagnostic, you repeat all 13 tools with open-ended training by difficulty.
You can start training with any tool right away.
Separate what you see from what you know
The domain is clothing; the structure is the class
Keep only the essence, drop the rest
Picture it in your head and turn it around
Read the structure inside repetition
Make rules and assemble a world
When your head is stuck, solve it with your body
Become that person
Change the scale and the axes
Build it small to understand it big
Play around with a serious problem
Change the representation, change the thought
Weave the tools into one
The diagnostic (radar) is measured against the 3 core tools: Observing, Analogizing, Abstracting.
Honest measurement
This score is not an IQ. It's not a standardized psychological test either.
It's a training baseline that auto-scores your fundamentals in Observing, Analogizing, and Abstracting against an answer key. The point of the score isn't to judge you — it's to decide what to train first.