[saalweachter]

Once flying cars are as cheap and easy to own and operate as regular cars, why would anyone buy a non-flying car?

[digging]

I think you're going to need to explain your position a little better.

[saalweachter]

Upload, like flying cars, is a particular vision of a scifi future technology which may not come to pass.

You're prognosticating a future "when X...", when that "when" is a very big "if".