Author also forgets #3: instant availability of the user's data on each of his devices in the proper format. As a user who has to work with several devices sim

Author also forgets #3: instant availability of the user's data on each of his devices in the proper format. As a user who has to work with several devices simultaneously (several laptops in my laboratory, each managing some equipment), I find it very critical to have my data immediately available between all the devices. Also, how will it be possible for a 19 year old to become a billionaire unless they can build their stuff on top of the other frameworks?