HyperCard was about empowering users, the opposite of what many tech companies want today, including Apple. It was a "predecessor" to the web (hypertext, HyperTalk scripting language), of Flash (animations, graphics), of user programmable databases (ok, Filemaker is older). It enabled users to smoothly dive into programming, as it not only offered a simple but extremly powerful concept of document-applictions called "stacks", drag-n-drop setup of your own graphical user interfaces, but behind all this a very powerful, extendable object oriented programming language with kind of "real" objects, as every item of your stack could have it's own method. Thankfully we have web technology today, else computer technology would miss its most democratic tool. But still HyperCard was the only way to simply have your own data on your own computer in your own application and not relying to a server, cloud or even paid service.