One of the things I really enjoyed about the Chrysalids fantasy was the telepathic ability of the main characters. It seemed to me that if telepathy is possible, or will be in the future, the author's description of it was as good as any. I liked the way the characters' telepathic powers had limits and that those limits varied by individual. The characters' limits made me think of our own physical capabilities, such as strength. Anyone can improve their strength but there are certain limits we are born with, similar to the telepathy in the story. People are born with different abilities, but with teaching and practice, those abilities can be improved, some more than others.
Telepathy may seem far-fetched to most of us, but if you think about
