I asked Kiera, who is going to Kindergarten, "What is the difference between 'none' and 'zero'?". She drew a zero in the air to represent a 'zero' and opened her hands to represent 'none'. She may understand the concept of zero and none.
I'm working on averaging returns. For example, when you have a return of 100% in one year and a return of 0% in another year, your average return is 50%.
In another year, you do not have a return for some reason such as no data available for that year. The average of the two years with 100% in one year and no data in another year (programmers understand the concept of null better) is 100%.
Smart, luck or I'm data-fitting (an investing term) - you decide. Or, I have too much free time to make you waste your valuable time to read this post. LOL.
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