By why is A in this case “use Facebook”? No one is making anyone use Facebook, people choose to use it,
Because the question is “why are people continuing to use Facebook”, not “why did they start using Facebook”. It doesn’t matter why they started. They did; this is now a brute fact. But why do they continue? And so “use Facebook” is of course the default choice, the non-action.
it’s not really a default except that in some particular framing you may think of it as a default
No, it’s a default in the obvious and straightforward way of “a person who is already using Facebook, by default, continues to use Facebook”. Switching takes effort (cognitive effort, time, etc.). Heck, it takes even knowing that you can switch, not to mention knowing what to switch to, and how. Continuing to use Facebook takes no effort and no thought.
I feel like your entire argument is hinged on a hidden assumption about a framing that places Facebook as a default choice.
It’s not hidden at all, it’s not an “assumption”, and it’s not a “framing”; it’s just how things are.
That’s fine as far as it goes but I also feel it fails to address the point I’m making by picking a different frame of reference, namely one that is aiming to be more outside.
No amount of framing changes the facts of this matter.
Because the question is “why are people continuing to use Facebook”, not “why did they start using Facebook”. It doesn’t matter why they started. They did; this is now a brute fact. But why do they continue? And so “use Facebook” is of course the default choice, the non-action.
No, it’s a default in the obvious and straightforward way of “a person who is already using Facebook, by default, continues to use Facebook”. Switching takes effort (cognitive effort, time, etc.). Heck, it takes even knowing that you can switch, not to mention knowing what to switch to, and how. Continuing to use Facebook takes no effort and no thought.
It’s not hidden at all, it’s not an “assumption”, and it’s not a “framing”; it’s just how things are.
No amount of framing changes the facts of this matter.