Yes – totally agree about this obsession with performing for an imaginary audience. I see this too and I think it comes down to a kind of vanity metric – similar to the narrative fallacy and what you talk about in the post you linked to about travel: people want their lives to be interesting because their ego seeks the approval and appreciation they get from their peers, and they project that onto a bigger imaginary audience. And the cycle begins.
That was your point, no?
A separate question – I agree that millennials often talk about doing [artistic] things but never get around to doing them. (I’m guilty of that.) What I don’t get it that bit where you ask — did we lose something? What are you suggesting, Ryan?