Off panel: T-Rex, I am a real doctor. Here is your tetanus shot. You'll need to get it again in 10 years.
T-Rex: NOT A PROBLEM!!

Narrator: LATER:
T-Rex: WAIT, THIS IS ACTUALLY A PROBLEM!!

T-Rex: Let's be honest: it's 100% guaranteed that I'm not going to remember an appointment for a decade! And I'd lose any piece of paper I wrote down a reminder on.
Dromiceiomimus: How about a calendar website or program?
T-Rex: Dude, I don't still use a single piece of software I used 10 years ago! That trend seems likely to continue.
Dromiceiomimus: I guess... a Facebook event?

T-Rex: Oh God! Imagine if I'm using Facebook a decade from now?
Utahraptor: Aw geez. Aw GEEZ.

Utahraptor: Listen, let's make a Facebook event for a decade out that says "SELF, IF YOU ARE STILL ON FACEBOOK WHEN THIS EVENT HAPPENS, THEN WE HAVE MADE SOME BAD FRIGGIN' DECISIONS."
T-Rex: "ALSO: GET YOUR TETANUS SHOT AGAIN"
T-Rex: Two birds with one stone!

Narrator: TEN YEARS LATER:
T-Rex: Oh man! Remember when I set up this event?
Off panel: Oh man! Remember when it was legal not to be on Facebook?
T-Rex: Oh man! Remember when you wouldn't go to jail if you named your kid something other than "Facebook's V. Cool"??