Ode to McLuhan

The medium is the message
Or so McLuhan said
(Oh, waiter - I'll take that steak medium-well
And don't you DARE skimp on the bread!)
But what really matters most here
What's really disgusting
(MY GOD! - THE PRESIDENT OF THE UNITED STATES
IS CALLING MY CELLPHONE!!!)
Is ...

Sound-bites and fury
Signifying nothing