> Spreadsheets are poor man's MapReduce. Yes. Emphasis on "poor man's". Excel is mediocre at many things, but it's highly accessible so people use it anyways.

> Spreadsheets are poor man's MapReduce. Yes. Emphasis on "poor man's". Excel is mediocre at many things, but it's highly accessible so people use it anyways. That can be good or bad depending on the situation. Need to quickly crunch numbers for a small dataset? Excel is perfect. You can probably put something together quickly to get what you want. Need to maintain a contact tracing database? Not so great. Excel scales poorly and the low implementation cost isn't worth the limitations and risks.