A number of months back, I read somewhere that Gene Roddenberry was partially inspired by a 1948 novel called "The Space Cadet" (https://en.wikipedia.org/wiki/Space_Cadet) when he was developing Star Trek. I can't for the life of me remember where I read this. So can anybody confirm whether this was indeed an inspiration or not? Reading up on the book, there do seem to be similarities, but those may very well just be coincidences.