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Simplifying complex ideas through fun and insightful sketches. Explore topics from science, creativity, psychology, and more explained in pictures.

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Recent sketches

Temptation bundling

Temptation bundling is a self-enforced technique that combines something you want to do with something you find hard to do. If you find it hard to work out at the gym, you can make it more appealing by only watching your favourite shows when you're there. If you struggle to get down to working on a project, combine it with the only time you order your favourite drink. The hope is that the treat is enough to get you stuck into the hard task. Temptation bundling is a kind of commitment device like that used by Odysseus. Temptation bundling is from Katy Milkman, who also taught me about the Fresh start effect, and has a book called How to Change. It's also one of the techniques discussed in James Clear's Atomic Habits. For a study evaluating temptation bundling, see: Holding the Hunger Games Hostage at the Gym: An Evaluation of Temptation Bundling, Milkman et al., Management Science, 2014…Temptation bundling is a self-enforced technique that combines something you want to do with something you find hard to do. If you find it hard to work out at the gym, you can make it more appealing by only watching your favourite shows when you're there. If you struggle to get down to working on a project, combine it with the only time you order your favourite drink. The hope is that the treat is enough to get you stuck into the hard task. Temptation bundling is a kind of commitment device like that used by Odysseus. Temptation bundling is from Katy Milkman, who also taught me about the Fresh start effect, and has a book called How to Change. It's also one of the techniques discussed in James Clear's Atomic Habits. For a study evaluating temptation bundling, see: Holding the Hunger Games Hostage at the Gym: An Evaluation of Temptation Bundling, Milkman et al., Management Science, 2014

16 Apr 2023

Hotel HQ

Stay organised in your hotel room with this one weird tip. When arriving at a hotel room clear the desk and fold a bathroom towel or flannel to make a little square space and use it as a store for all your useful stuff. OK, so it actually does seem a little unusual, but having tested it on all hotel stays over the last few years I can say that it genuinely helps me not lose key things, like room keys, around my hotel room. It also reduces the chances that I'll leave without something important like a passport. Maybe give it a try. This tip I learned from Dan Pink's Pinkcast episode where he calls it his hotel inbox — the place to leave everything when he walks into the room.…Stay organised in your hotel room with this one weird tip. When arriving at a hotel room clear the desk and fold a bathroom towel or flannel to make a little square space and use it as a store for all your useful stuff. OK, so it actually does seem a little unusual, but having tested it on all hotel stays over the last few years I can say that it genuinely helps me not lose key things, like room keys, around my hotel room. It also reduces the chances that I'll leave without something important like a passport. Maybe give it a try. This tip I learned from Dan Pink's Pinkcast episode where he calls it his hotel inbox — the place to leave everything when he walks into the room.

9 Apr 2023

Pyrrhic victory

A Pyrrhic victory is one where your own losses or damage make it nearly as costly as defeat. Perhaps that business rival finally went out of business after you lowered prices so much that you can now barely get by. Maybe you managed to prove you were right at the cost of ruining a relationship. Or it could be that the kids did in fact get in the car and go out on that blasted walk only for everyone to have a miserable time, angry at each other for the rest of the day. Or maybe, as King Pyrrhus of Epirus found in 279 BCE, you won several battles against the Romans while losing so many of your best warriors as to make you wonder at the worth of the whole campaign.…A Pyrrhic victory is one where your own losses or damage make it nearly as costly as defeat. Perhaps that business rival finally went out of business after you lowered prices so much that you can now barely get by. Maybe you managed to prove you were right at the cost of ruining a relationship. Or it could be that the kids did in fact get in the car and go out on that blasted walk only for everyone to have a miserable time, angry at each other for the rest of the day. Or maybe, as King Pyrrhus of Epirus found in 279 BCE, you won several battles against the Romans while losing so many of your best warriors as to make you wonder at the worth of the whole campaign.

2 Apr 2023

Red volcano gray volcano - a red volcano's effusive eruption has lava flowing down its slope while a gray volcano's explosive eruption shoots ash into the air

Red volcano, grey volcano

While each volcano is unique they can largely be divided into red volcanoes and grey volcanoes. Red volcanoes typically have effusive eruptions dominated by the classic red-glowing lava flow or lava lake. The constant mild eruptions of lava let gases escape reducing the chances of gas build-up and larger explosions. A classic red volcano is Kīlauea in Hawaii. Grey volcanoes are known for explosive eruptions. Trapped gases and heat can build up within the volcano releasing explosive eruptions that can shoot ashes and rock high into the sky and cause fast-moving pyroclastic flows of solidified lava and ash. Grey volcanoes are typically much more destructive than red volcanoes and can exhibit some behaviours like their red counterparts. A classic grey volcano is Mt St Helens. I learned this distinction from the remarkable film Fire of love. Also see: Dirty thunderstorm The 3 tallest mountains The Keeling curve Order of adjectives (came to mind as I wrote 'classic red-glowing lava flow' - try the adjectives in other orders =) )…While each volcano is unique they can largely be divided into red volcanoes and grey volcanoes. Red volcanoes typically have effusive eruptions dominated by the classic red-glowing lava flow or lava lake. The constant mild eruptions of lava let gases escape reducing the chances of gas build-up and larger explosions. A classic red volcano is Kīlauea in Hawaii. Grey volcanoes are known for explosive eruptions. Trapped gases and heat can build up within the volcano releasing explosive eruptions that can shoot ashes and rock high into the sky and cause fast-moving pyroclastic flows of solidified lava and ash. Grey volcanoes are typically much more destructive than red volcanoes and can exhibit some behaviours like their red counterparts. A classic grey volcano is Mt St Helens. I learned this distinction from the remarkable film Fire of love. Also see: Dirty thunderstorm The 3 tallest mountains The Keeling curve Order of adjectives (came to mind as I wrote 'classic red-glowing lava flow' - try the adjectives in other orders =) )

26 Mar 2023

Braille

Braille is a tactile writing and reading system for the blind and visually impaired. It was invented by Louis Braille when just 15 in 1824. Respect! I don't know about you, but when I've tried braille on signs occasionally, it's always seemed difficult to train my fingers to differentiate the shapes and the dots. Perhaps it would have helped if I'd known how it worked. Braille is based on a pattern of 6 dots, like a 6 on dice, with different letters, numerals, or sounds being different combinations. It doesn't match the shapes of written letters though, instead breaking the alphabet up into groups of 10. The first 10 letters are combinations of the top 4 dots. The following 10 letters repeat the combinations and add dot 3 in the bottom-left. Then the remaining letters, except w start again adding with dot 6 added. W wasn't in Louis Braille's original French alphabet so appears tacked on at the end. Since its invention, it's gone through multiple iterations and languages, and there are combinations for punctuation (some common ones formed by shifting down the original 10 combinations), numbers, accented letters, maths symbols, and more. There is also agreed-upon shorthand where a letter may mean a common word eg l for like, and there are contractions where a symbol may mean a sound or set of letters like 'ch'. The sketch shows the Latin alphabet for modern English braille.…Braille is a tactile writing and reading system for the blind and visually impaired. It was invented by Louis Braille when just 15 in 1824. Respect! I don't know about you, but when I've tried braille on signs occasionally, it's always seemed difficult to train my fingers to differentiate the shapes and the dots. Perhaps it would have helped if I'd known how it worked. Braille is based on a pattern of 6 dots, like a 6 on dice, with different letters, numerals, or sounds being different combinations. It doesn't match the shapes of written letters though, instead breaking the alphabet up into groups of 10. The first 10 letters are combinations of the top 4 dots. The following 10 letters repeat the combinations and add dot 3 in the bottom-left. Then the remaining letters, except w start again adding with dot 6 added. W wasn't in Louis Braille's original French alphabet so appears tacked on at the end. Since its invention, it's gone through multiple iterations and languages, and there are combinations for punctuation (some common ones formed by shifting down the original 10 combinations), numbers, accented letters, maths symbols, and more. There is also agreed-upon shorthand where a letter may mean a common word eg l for like, and there are contractions where a symbol may mean a sound or set of letters like 'ch'. The sketch shows the Latin alphabet for modern English braille.

19 Mar 2023

A speaker is saved from confusing the listeners with a chart when one brave soul asks what on earth a TLA is

Ask the question at talks

At times we've probably all been confused or struggled to understand a talk or a class. When I'm lost or confused my rule of thumb is to ask, even when it's not easy. The desire to understand what's being said fights with the urge not to interrupt the talk or ask what may be a dumb question — perhaps everyone else already knows? But in my experience, if I'm confused, others likely are too. It helps to believe this because I know that asking will probably help others and not just myself — asking is a public service. It's very easy as a speaker to assume that others will know what you know and so jargon and TLAs (Three Letter Acronyms - really an initialism) so easily slip in. When someone asks it helps include everyone again. And you're not just doing a favour for the audience by asking — it's a gift for the speaker too. If I'm giving a talk I want people to get what I'm sharing and not suffer in silence thinking they're stupid and I'm confusing. I want everyone to follow from start to end. It's one more good reason to thank people for the questions you receive. Let's banish confusion and all get to the end together by asking the question. This advice stands provided you've been paying attention along the way. I was surprised to find there are a number of, mostly older, sketches on questions and asking: Challenge questions Don't fill the silence Perform good social research Prefer open-ended questions Ask a question early at conferences Start 3 mindmaps at conferences Ask for what you need Get more participation…At times we've probably all been confused or struggled to understand a talk or a class. When I'm lost or confused my rule of thumb is to ask, even when it's not easy. The desire to understand what's being said fights with the urge not to interrupt the talk or ask what may be a dumb question — perhaps everyone else already knows? But in my experience, if I'm confused, others likely are too. It helps to believe this because I know that asking will probably help others and not just myself — asking is a public service. It's very easy as a speaker to assume that others will know what you know and so jargon and TLAs (Three Letter Acronyms - really an initialism) so easily slip in. When someone asks it helps include everyone again. And you're not just doing a favour for the audience by asking — it's a gift for the speaker too. If I'm giving a talk I want people to get what I'm sharing and not suffer in silence thinking they're stupid and I'm confusing. I want everyone to follow from start to end. It's one more good reason to thank people for the questions you receive. Let's banish confusion and all get to the end together by asking the question. This advice stands provided you've been paying attention along the way. I was surprised to find there are a number of, mostly older, sketches on questions and asking: Challenge questions Don't fill the silence Perform good social research Prefer open-ended questions Ask a question early at conferences Start 3 mindmaps at conferences Ask for what you need Get more participation

12 Mar 2023

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