Today is "Pretend to be a Time Traveler Day."--

It's "Pretend to be a Time Traveler Day" on Saturday, Dec. 8. Here are some suggestions to celebrate the traditional holiday:

Remember, dystopian future travelers are very startled that they've gone back in time. Some starters:

- If you go the "prisoner who's escaped the future" try shaving your head and putting a barcode on the back of your neck. Then stagger around and stare at the sky, as if you've never seen it before.

- Walk up to random people and say "WHAT YEAR IS THIS?" and when they tell you, get quiet and then say "Then there's still time!" and run off.

- Stand in front of a statue (any statue, really), fall to your knees, and yell "NOOOOOOOOO"

- Stare at newspaper headlines and look astonished.

- Take some trinket with you (it can be anything really), hand it to some stranger, along with a phone number and say "In thirty years dial this number. You'll know what to do after that." Then slip away.

My favorite time traveler story in the last year was the 2-part South Park episode in which Cartman can't wait for the Wii game player to come out.

Just Dropping By (mail):
Great fun, but you missed honoring the Day of the Ninja on December 5! See here: http://dayoftheninja.com/index2.html
12.8.2007 2:29pm
alias:
I was going to suggest this, and then I saw it on the linked site: "The important thing to remember is dress like a crazy person with armor. Black spray painted football pads, high tech visors, torn up trenchcoats and maybe even some dirt here or there".
12.8.2007 2:41pm
Thomas_Holsinger:
We had a thought experiment about this on April 1, 1996, on the now-defunct GE network (GEnie)'s Science-Fiction Writer Roundtable. The premise was that, as you neared the door of the building where you worked about to enter work, you were dropped back to the same location on April 1, 1936, with whatever clothes, books, briefcases, etc. you had on you that morning.

People said they'd appear in cow pastures, etc., panic. But writer John Barnes won the grand prize. He was then teaching drama at some Colorado college which existed in 1936, as did his office, and said that he had showed up for work that morning (04/01/96) very hung over from a party, so he'd just have entered the building oblvious to everything and everyone, and not notice anything amiss until discovering that his keys did not fit his office door.
12.8.2007 2:41pm
Robert R. (www):
Tomorrow was "Pretend to Be a Time Traveler Day."

Wait, what is today?
12.8.2007 3:45pm
Robert R. (www):
"I've been sent from the future to get you pregnant so our son can save the world.

"(And by the way, the history books didn't say anything about me sticking around afterwards.)"
12.8.2007 3:51pm
arbitraryaardvark (mail) (www):
This post as a webcomic.
12.8.2007 4:02pm
Mike G in Corvallis (mail):
Why not link to the original? It includes a long and creative discussion thread.

It's also nice to give credit where credit is due. (Yes, Ken Denmead gave a tiny link to Dresden Codak at the end of the post, but apparently didn't otherwise identify it or name Aaron Diaz as the author.)
12.8.2007 5:20pm
CEB:
Don't forget the advice that Abraham Simpson gave to his son Homer on his wedding day: "If you ever travel back in time, don't step on anything, because even the tiniest change can alter the future in ways you can't imagine."
12.8.2007 5:37pm
The McGehee (mail) (www):
Some days it just seems simpler to try pretending not to be a time traveler...
12.8.2007 8:55pm
Hoosier:
My fantasy: I pretend that I've travelled back in time to verify that you people of 2007 don't yet have time machines. Because I'm trying to jump he patent.

Which scenario pretty much proves that there will never be time machines: If someone were ever to invent one in the distant future, it would have been patented long ago.
12.8.2007 10:59pm
Ric Locke (mail):
One of my favorites was the time traveler who had a severely restricted radius of operation. He explained that the problem was that the time machine drew its power from a wall socket in a basement laboratory of a University that would never exist, and moving it might pull out the plug...

But Larry Niven's analysis satisfies me. If time machines are possible, they will inevitably be used to alter the time line. The simplest alteration is the one that results in the time machine never being invented. Therefore time machines cannot exist, however much we'd like to go back to high school and this time have the courage to invite Andrea to the prom.

Regards,
Ric
12.8.2007 11:41pm
CheckEnclosed (mail):
So ... any time machine would already been patented -- but then would never be invented? Microsoft already has this. It is called vaporware, and you must all cease and desist ...
12.9.2007 12:14am
Jediflyer (mail):
<i>If time machines are possible, they will inevitably be used to alter the time line. The simplest alteration is the one that results in the time machine never being invented. </i>

The thing is, the past has already happened from the point of view of the future. There can be time travellers from the future, but they would already be a part of the past (their actions in the past will have already taken place before they step into the machine and go back in time) and thus can't change the future.
12.9.2007 12:26am
PeteRR (mail):
I don't think that time is that immutable. I would think that you could shunt your present onto a deadend timeline by intervening in your own past, thereby creating a new future. Destroying your opponents by eliminating them in the past is the ultimate WMD and intervening to prevent time travel from ever occuring therefore seems likely. It may even have been invented by someone in our past(Edison comes to mind) and eliminated soon after.
12.9.2007 12:59am
anym avey (mail):
The thing is, the past has already happened from the point of view of the future. There can be time travellers from the future, but they would already be a part of the past (their actions in the past will have already taken place before they step into the machine and go back in time) and thus can't change the future.

Well...the way I sees it, if you've actually invented the time machine, you can probably do whatever you good and well like with it.
12.9.2007 1:02am
Jediflyer (mail):


Well...the way I sees it, if you've actually invented the time machine, you can probably do whatever you good and well like with it.


The thing is you can, but you have already done it.
12.9.2007 1:17am
Hoosier:
"There can be time travellers from the future, but they would already be a part of the past (their actions in the past will have already taken place before they step into the machine and go back in time) and thus can't change the future."

That makes time travellers pathetic losers, since the rest of us can change the future.
12.9.2007 5:51am
markm (mail):
Jediflyer, the problem is that, knowing human nature, the various things that people would attempt to do with time travel, including trying to murder the inventor's great-grandfather, would lead to conflicting results - unless you posit some sort of magical law of nature that bans the creation of paradoxes. But there's always one simple solution to temporal paradoxes: time travel to the past is never discovered, or if discovered remains generally impractical and a closely-held secret.

In R.A. Heinlein's A Door Into Summer, the secret military laboratory developed a time machine that will displace two equal masses in time, one to the future and the other to the past - but whether it is you or your counterweight that goes to the past is, like certain quantum phenomena, inherently a 50-50 chance. Since that wouldn't be useful to the government, the project was shut down and the time machine remains locked up in an empty lab. However, Heinlein's protagonist knows from documentary evidence that he went backwards, so he breaks into the lab and puts himself in the machine. IOW, it worked for him because he was fulfilling history rather than trying to change it - but the time machine remains only because it is a closely held secret that hasn't affected society.
12.9.2007 8:10am
Dick King:
To those who are worried about retroactive patents, altering the pre-time-machine past, etc.

Aren't time machines only capabile of transporting the user back to the time they first become operational? I know that Tipler Cylinders and wormholes work that way...

-dk
12.9.2007 11:09am
Hoosier:
Dick--Actually, I doubt they can even do that.
12.9.2007 12:58pm
The McGehee (mail) (www):
The instant a working time machine comes on line, infinite improbability comes into play, and the universe simultaneously does and doesn't exist -- sort of a Schrodinger's Cat experiment turned on its head.

At that moment, the universe presents a Blue Screen of Death, and if there's a God He hits the reboot button.

If there isn't, we're screwed.
12.9.2007 1:17pm
WHOI Jacket:
But, we need time travellers!

Only a person who is his own grandfather can defeat the evil Brain menace.
12.9.2007 1:31pm
U.Va. 3L:
Well played, WHOI Jacket, well played.
12.9.2007 1:40pm
MattL:
http://timetraveler.ytmnd.com/
12.9.2007 2:22pm
frame of reference (www):
I thought Leonardo (da Vinci) already had the patent?

And DMC? The flux capacitor?

I heard that people from the future are more subtle than are we.
12.9.2007 5:24pm
johnnypeepers (www):
Time-travel kicks ass
12.9.2007 5:59pm
Waldensian (mail):
Are you sure that was a two-part South Park episode?
12.9.2007 6:33pm
Mike G in Corvallis (mail):
"It may even have been invented by someone in our past (Edison comes to mind) and eliminated soon after."

You people need to read R. A. Lafferty's story "Rainbird."
12.9.2007 7:46pm
Hoosier:
Uncle Rico says the time machine doesn't work.
12.9.2007 7:49pm
Waldensian (mail):

Uncle Rico says the time machine doesn't work.

Nice. Very nice.
12.10.2007 12:24am