What would be the best way to ensure a message is recieved 100 years in the future?

What got me thinking about this- there is a silly radio commerial for Six Flags/Coke that features Nikola Tesla broadcasting to the people of the future from the past talking about Coke and rollercoasters. The ad makes no attempt to explain how the signal delay achieved. Presumably - He bounces a radio signal off a distant object and somehow had the forsight to use FM frequencies.

I know in one of the Back-to-the-Future's Doc/Marty had the Post Office deliver a package to a specific time and place. I can't imagine the post office offers this service but perhaps another company might.

Time Capsule? Some sort of electronic delivery, like an email/virus/ect bouncing around the internet for 100 years?

Forget the why, how would you realisticlly accomplish this? (Just trying to reduce the Invent-a-timemachine responses)

well there is such a thing as delayed mail. or at least there was. dunno if it still happens.

A time capsule could work. You'd just have to request that the package be sent once it is pulled out.

You might also put a provision in someone's will. It wouldn't be as exact as the time capsule, but it could be passed down among wills if necessary to reach within a year or two.

But none of these will ensure the message is ever received, the capsule is ever dug up, etc.

Basically the only way to be sure is to be there yourself, which limits the timeframe.

For 100% accuracy, you are probably right. I was thinking maybe if the scale was big enough so that all humanity cant help notice that might help ensure delivery. I can't think of a realistic way to accomplish that however.

One of my coworkers suggested hypnotizing a large class of kindergarten students.

Hypothesizing? I hypothesize that kindergarten students will forget it by time they are six. Let alone one hundred and five.

Launch a rocket into space such that it orbits the sun outside the plane of the planets and returns to earth in exactly one hundred years, striking some remote part of the planet. Launch a second rocket such that it strikes a major city two days after this first rocket. The message one your first rocket ensures that the second rocket will not be shot down; the second rocket carries a large thermo-nuclear warhead.

I'd make it a 4chan meme.

I imagine it'd still exist in the future although it might get distorted like a game of chinese whispers.

Ahhh good ole spellchecker. It's supposed to prevent me from looking like an idiot... Human Stupidity 1, Machine Intelligence 0.

keep it as a family heirloom

Start a religion. It's not very hard.

Also, leaving something in a time capsule would probably be the best way to do this. You would just have to make sure it was in a well known place where people knew to open it after 100 years.

<3

Bury it near a road, put up a sign that says something akin to "Unearth in 100 years"
Sure it's not foolproof, but it might work.

Wouldn't work, you left the burial date off it.

Nuke some area, and then go and plant your time capsule in the middle of the crater. Since the area is contaminated people won't go there until the contamination is gone. Then they'll investigate.