About the author

Yosef Gerson

I write about everyday questions that get more interesting when you try to answer them.

Sometimes it’s a number. Two schedules can average the same number of hours and still ask very different things of the people working them. Sometimes it’s a familiar object. A fan changes how quickly you lose heat, and that’s a different job from cooling a room.

I like explanations you can check for yourself. That might mean changing a number in a calculator, putting a mug in front of a picture to see how perspective works, or checking an AI summary against the notes it came from. I use illustrative examples and say where the comparison stops working.

I also write as Yossi Gerson.