It's more like replacing the park with plastic immitation trees.

No the park hasn’t changed.

It’s like walking in the park when everyone else is zipping past you on scooters, and there’s nobody going your speed for you to talk with or even smile at.

I think "previously" meant "previously, using AI," not "previously to AI." The comment is confusing because "the AI era" seems like the antecedent of "previously" but it isn't.