You absolutely can do it within the existing paradigm, in a number of ways, actually. Search for iroh, or DynDNS for example.
And if you seriously believe that Dropbox appeared because of NAT, and not because people prefer out-of-the-box solutions, I can only suggest you to go out of your bubble, and discuss technical issues with random people.
"Intended" btw is not even an argument. Internet wasn't intended for many things which we happily do here.
And if you seriously believe that Dropbox appeared because of NAT, and not because people prefer out-of-the-box solutions, I can only suggest you to go out of your bubble, and discuss technical issues with random people.
"Intended" btw is not even an argument. Internet wasn't intended for many things which we happily do here.