Yep, totally agree. And, these lookalike models are the bread & butter that drive FB's advertising revenue, so it won't be taken lightly. My guess is that if

Yep, totally agree. And, these lookalike models are the bread & butter that drive FB's advertising revenue, so it won't be taken lightly. My guess is that if this feature is ever launched, it'll be in a form that is necessarily not heavily adopted.