I think this paragraph from the linked article captures the gist:
Near the end of most episodes, Tyler asks some version of this question to his guests: “What is your production function?”. For those without an economics background, a “production function” is a mathematical equation that explains how to get outputs from inputs. For example, the relationship between the weather in Florida and the number of oranges produced could be explained by a production function. In this case, Tyler is tongue-in-cheek asking his guests what factors drive their success.
Not to anchor Singer too much, but it looks like other people seem to say things like “saying yes to new experiences,” “reading a lot,” and “being disciplined.”
I think this paragraph from the linked article captures the gist:
Not to anchor Singer too much, but it looks like other people seem to say things like “saying yes to new experiences,” “reading a lot,” and “being disciplined.”