Sometime when I`m laying in bed, I try to focus on making heat with my hands, I vision a fireball above them and surely, my hands get`s warmer, but there`s no fireball of course, but my point is, the more you practise, the warmer the hands get`s, so perhaps over enough time you can make one, but I guess it`s the same with telepathy, we humans just talk normally to communicate, so there was never probably any reason to send your thoughts to others, but think about it, if you focus all your energy in your head and body to do it, would you ever evolve to do it and have aliens done it already for the fun of it?