If you want signs that it's definitely 2013 we're living in, this is potentially near the top.
On Monday John Daly tweeted at Miley Cyrus after she went on the Today show and talked about sex. She said "I heard when you turn 40, things start to go a little less sexual. Probably around 40, around that time, I heard that's when people don't have sex anymore."
John Daly does not agree with you, Ms. Cyrus.
He tweeted that he loves Miley's music (which is hilarious in and of itself) but that he's over 40 (actually 47 to be exact) and still loves sex.
I think Twitter has jumped the shark.