What We Knew

We are in month three of COVID-19 quarantine. I haven’t written much about it (as I’m not sure there are any brilliant observations to made while in the midst of it) but I have been trying to pan out from the situation so as not to miss out on any lessons.

Going through some of my reading notes, I noted an observation from Nobel prize winning economist Daniel Kahneman from his book Thinking Fast and Slow. In light of all the statements of certainty that people are spewing, I appreciate his wisdom.

I have heard of too many people who 'knew well before it happened that the 2008 financial crisis was inevitable.' This sentence contains a highly objectionable word, which should be removed from our vocabulary in discussions of major events.

The word is, of course, knew.

Some people thought well in advance that there would be a crisis, but they did not know it. They now say they knew it because the crisis did in fact happen. This is a misuse of an important concept. In everyday language, we apply the word know only when what was known is true and can be shown to be true. We can know something only if it is both true and knowable.

But the people who thought there would be a crisis (and there are fewer of them than now remember thinking it) could not conclusively show it at the time. Many intelligent and well-informed people were keenly interested in the future of the economy and did not believe a catastrophe was imminent; I infer from this fact that the crisis was not knowable. What is perverse about the use of know in this context is not that some individuals get credit for prescience that they do not deserve. It is that the language implies that the world is more knowable than it is. It helps perpetuate a pernicious illusion.

A little humility in these times will do all of us well.