Strangely, this is not true. Joel Spoelsky has a great post about this from many years ago [1], but the bottom line is that the 80/20 rule doesn’t mean that you

Strangely, this is not true. Joel Spoelsky has a great post about this from many years ago [1], but the bottom line is that the 80/20 rule doesn’t mean that you can implement 80% of the features and sell only 20% fewer copies. Everyone uses a different final 20%, so you reduce your market share quite dramatically by not shipping a fully mature product in a fully mature market (which is what word processors and spreadsheets are). 1. https://www.joelonsoftware.com/2001/03/23/strategy-letter-iv-bloatware-and-the-8020-myth/ https://www.joelonsoftware.com/2001/03/23/strategy-letter-iv...