Creativity is a spark. It can be excruciating when we're rubbing two rocks together and getting nothing. And it can be intensely satisfying when the flame catches and a new idea sweeps around the world.
Sending greeting cards to aliens is hardly a new idea. In 2005, Craigslist solicited messages for broadcast to space by a transmitter in Florida, and in 2008, NASA beamed a Beatles song to the North Star (Polaris), on the assumption that any putative Polarians would appreciate the Fab Four's 1960s-genre compositions.
There's an element of tongue-in-cheek in every one of our songs. Walking off into the sunset, holding hands, and being married forever was not exactly a brand new idea.
Usually, if you have a new idea, you very rarely break through to anything like recognizable development or implementation of that idea the first time around - it takes two or three goes for the research community to return to the topic.
Indeed, whenever a new idea is developed, as for example ballooning, warfare immediately takes possession.
It wasn't a new idea. During the war against the French we had this kind of broadcast for the French soldiers.
For a long time on Earth humans didn't worship good gods; that's a new idea. The ancient Greek gods, the Hindu gods, are fairly amoral, most of them. We get stuck when we insist that God be both good and all-powerful.
If you are going to make a change, don't go halfway. Make it with conviction and stick with your new idea. Ignore the scoffers. Remember, it is a law of nature that if something is different you're going to be taunted, jeered, and told the world is flat. Let the doubters fall off the edge.
You can judge your age by the amount of pain you feel when you come in contact with a new idea.
This call for a new culture is not a new idea.