I love Tyler’s first clause:
We all overinvest in non-diversified mood affiliation portfolios …
Mood affiliation is the name for a reasoning fallacy that Tyler coined, and it’s a good one: people decide on their attitude first, and then collect arguments that support that position. Think about it: being a vegan is possible but really rather difficult — most people choose the path first and then do their research.
For those not used to Tyler’s finance jargon in this context, by portfolio he means a collection of ideas, by non-diversified he means that the items in this collection are too similar, and by overinvest he means that we collect to many. Summing up: we collect too many ideas that support the mood we’ve already decided upon.
The second part of the quote encourages open-mindedness:
… So why not read someone else’s non-diversified mood affiliation portfolio from a less common point of view?