reminds me the shadowdraw paper microsoft did many years ago https://www.youtube.com/watch?v=hzq70CN48o4​ https://www.youtube.com/watch?v=hzq70CN48o4​ similar

reminds me the shadowdraw paper microsoft did many years ago https://www.youtube.com/watch?v=hzq70CN48o4​ https://www.youtube.com/watch?v=hzq70CN48o4​ similar concept, shadowdraw is based on database