Dark data is all the information businesses collect but never use. In fact,...

https://alpha-wiki.win/index.php/What_are_Transparent_File_Tables_and_How_Do_They_Help_with_Lakehouses%3F

Dark data is all the information businesses collect but never use. In fact, 60-80% of data sits inactive, costing companies up to $2.5 million each year in storage and management