Totally like whatever, you know?

Here is an excerpt from a poem called Totally like whatever, you know? By Taylor Mali.

In case you hadn't noticed,
it has somehow become uncool
to sound like you know what you're talking about?
Or believe strongly in what you're saying?
Invisible question marks and parenthetical (you know?)'s
have been attaching themselves to the ends of our sentences?
Even when those sentences aren't, like, questions? You know?