Lesson from emacs: keep data easy to manipulate and easy to present
Spreadsheets Spreadsheets are evil. And do you know why? Because they're too powerful. Here is the sweet spot of spreadsheets: tables of related data on which calculations need to be made. Here is not the sweet spot of spreadsheets: everything else. Spreadsheet software is so powerful nowadays that you can make visualizations for almost anything. And some people are happy to spend a really long time creating and maintaing those, but I am WAY, WAY lazier than those people are.