thumb|300px|right|Joking robot video. Isaac Asimov wrote a story called Jokester in which it is discovered that jokes are an experiment being run by aliens. In The search for Kalid, telepathic communication is a recently evolved human ability. I've been thinking about the evolution of telepathic communication and the idea that aliens might play a decisive role in allowing humans to develop telepathic communication.
In The Bicentennial Man, comedian Robin Williams has a funny scene (see the video, to the right -->) in which he plays the part of a robot trying to tell jokes. He tells them "robotically". Could a robot with no experience or understanding of human experience tell jokes and "get" them?....
Jokes can be "hard to get" unless you share the cultural background of the person telling the joke. Example: "There are 10 types of people...those who know binary and those who don't." If you know binary and realize that "10" in binary is equal to "2" in decimal, then you can "get" this nerdy joke. Would the telling of jokes provide an efficient way to develop someone's telepathic skills?
Baby talk, or "parentese" is is a special style of speech used by adults when talking to children who are learning human language. The idea is that it is helpful for language learners to hear a simplified and exaggerated version of language while they are trying to learn it. Similarly, is there a "trick" that could be used to help people develop their innate telepathic abilities?
The plot device for telepathy in The search for Kalid is that telepathic communication involves exchange of "T-particles". But even if a human brain could "encode" a thought in the form of "T-particles" and even if another brain could produce neuronal signals in response to received "T-particles" carrying encoded thoughts, how could the receiving brain ever decode such a signal? If you were bombarded with a pattern of flashing lights that represented a thought, how would you know that it represented a thought, and a particular thought?
This fits with an idea in The search for Kalid, the idea that telepathy evolved as a way for humans to judge each other. People such as the anthropologist Terrence Deacon (See his book The Symbolic Species) have discussed the idea that human language might have evolved as a way for humans to judge if potential mates have worthy brains. Why not the same for telepathy? How many people look for a mate with a good sense of humor?