Invert, always, invert

Today, we will look at one of my favourite mental models called – The Inversion principle. Mental models are a set of simple, abstract but useful principles that help us make sense of the world around us. I came across the Inversion principle on the Farnam Street blog.


A friend who has dyslexia described to me how she experiences reading. She can read, but it takes a lot of concentration, and the letters seems to “jump around”. I remembered reading about typoglycemia.

Goodwill Hunting

After 10ish years of second-hand shopping, I’ve started to ask myself a lot of questions about the clothes I’ve been buying, like, “Did someone die in this?” or, “Have thrift stores always been this pricy?” (the answer to the former being, “yeah, probably”).