Sketchplanations
Big Ideas Little Pictures

Sketchplanations in a book! I think you'll love Big Ideas Little Pictures

Sketchplanations podcast photo of Rob Bell, Tom Pellereau and Jono Hey

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Explaining the world one sketch at a time

Sketchplanations makes complex ideas simple with clear, insightful sketches. Explore topics from science, creativity, psychology, and beyond explained in pictures.

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Learn something new in a sketch each Sunday

Recent sketches

Volunteer your own booking fee

Whenever I think of the convenience of someone doing something for me I usually conclude it’s easily worth a tip. So I have taken to adding one. Then hopefully they’ll be happy to do it again in the future too.
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The frequency illusion explained in a sketch with an expecting couple suddenly seeing babies everywhere

The frequency illusion: we notice what’s top of mind

The reason, generally, is simply that all those times previously, we weren’t tuned in to notice what’s top of mind now. The frequency likely hasn’t changed a bit, but our noticing of it has. Also known as the Baader-Meinhof Phenomenon.
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Dirty thunderstorm definition, explanation and example

Dirty thunderstorm

A dirty thunderstorm is caused by ash and rock interacting inside a cloud instead of ice particles. As you can imagine, you can get this with volcanoes, which can be pretty spectacular. See more about how lightning forms inside a thunder cloud.
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The ice mile

The ice mile

Swim a mile in water 5C or less. The ice mile is hardcore. Respect for crazy, amazing people like Lewis Pugh. Or if you’re in London, check out The Swimmer.
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Cognitive bias, heuristic, logical fallacy: hidden features of the mind

These terms come around a bit, and I wanted to get them clear in my head so I understood the difference. Cognitive bias Cognitive biases are predictable patterns of thought and behaviour leading to incorrect conclusions. Things like anchoring, where we are predictably led astray by the presence of a previous number we have seen. Heuristic A heuristic is a mental shortcut to solve common problems. Things like social proof, how if others seem to like something that’s a shortcut for "we’ll probably like it." Logical fallacy A logical fallacy is a flaw in our reasoning, leading to a faulty argument. Things like the sunk cost fallacy, where we will sometimes make ourselves unhappy in the future because of something we’ve already done that we can’t change. The logical step would be to choose the path that would make you happiest in the future regardless of any sunk costs up to now. Turns out that’s hard. HT: You are not so smart
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The Monty Hall problem

Loosely based on the game show Let’s Make a Deal, hosted by Monty Hall, what’s known as the Monty Hall problem is a simply constructed puzzle. Imagine in a game show contestants saw 3 doors, and behind one of which is a prize, and behind the other two doors, goats. The contestant chooses a door, but instead of opening it, Monty opens one of the remaining doors that reveals a goat. He gives you a choice: Do you want to change your door or stick with the one you picked? The problem is: which is the better choice? If you’re interested it’s pretty easy to find out the real answer. Confirming to yourself why is another thing.
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