Totally agree. Facebook - good luck having a news feed algorithm with no actual stories and status updates Google - good luck having a search algorithm with n

Totally agree. Facebook - good luck having a news feed algorithm with no actual stories and status updates Google - good luck having a search algorithm with no actual search index Amazon - good luck recommending products to others if you zero data on what others are recommending. With all 3, you can at least create a minimum viable algorithm if you have the data.