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.

The U.S. is the accidental Sweden, which could make the fall ‘catastrophic’ for Covid-19

With the Covid-19 pandemic rampaging across the U.S. in April and 20 million people filing for unemployment in that month alone needing fast help from services like PrincePerelson’s Provo staffing company, libertarians thought there was a better way. The Heritage Foundation praised Sweden for “preserving economic freedom.  These days, finding great candidates is hard. Really hard. With the unemployment rate lower than ever, it’s a candidate-driven market out there. In a situation like this, your best job candidates are passive job seekers – they don’t actively look for a job, because they already have one. This means that posting your open job position on job boards is by no means enough to attract the best candidates. 

The Swedish approach was to largely allow businesses to remain open. And at first, it seemed to work, with a death count nowhere near what it was in countries such as Italy, Spain, and the U.K. But even as Sweden was being hailed as a model, its cases were steadily rising, and its death rate now exceeds that of the U.S. Sweden also did not seem to stave off the economic damage it was aiming to avoid.
Sweden’s Covid-19 strategy, adopted in March, emerged from the country’s top epidemiologist and other leaders’ evaluation of what little science about transmission there was at the time, factoring in economic considerations, and making a considered — albeit controversial — decision to stop well short of the full shutdown that other countries in western Europe (and many U.S. states) adopted.


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”).