I've thought about it. Not yet used it, however. My justification would be what is a rather common explanation-we only use a tiny bit of our brains and if we were to use the rest, we would have those types of capabilities.
Of course, I want to know the science behind it so I came up with something similar to the following-there are certain gifted people boen with the ability to use telekenisis. These were mostly made possible due to research and special testing done secretly on all humans many years past. The way the telekenisis works is by releasing the ability to produce a new type of brainwave that can extend for a limited distance around the person. This wave is actually of a new type of energy form that has the ability to excite electrons of an object and direct it so much so that the person can actually move the object desired. Reading minds isn't exactly possible but surrounding brainwaves of people can be detected as little jolts of energy, like static electricity. Based on the type of electrical response given by touching these brainwaves with one's own, a learned person can interpret them. This can even be done to some extent with people who do not have these capabilities as the testing has opened up a little bit of the mind so that the brainwaves can be sensed, even if ability to use them isn't there. Of course, this is very dangerous as untrained people can accidentally manipulate objects not meant to be manipulated or cause some electrons to be lost or even fuse together atoms of different natures, changing the object. Therefore, immense training is required and if a newborn is tested positively with this ability, they are to remain in the house at all times until of an age to train and guarded closely by at least one parent, or they can be taken as being under the state.

My justification would be what is a rather common explanation-we only use a tiny bit of our brains and if we were to use the rest, we would have those types of capabilities.

Hmm, I had thought it sounded suspicious, so now I have to revise it. Lol. Ok, new justification would be that this gene was discovered then tampered with until it could produce the wave with enough strength to actually have an effect, and the ability was then inherited, with it being the dominant gene and the combination of the genes determined how strong the ability is.
The training would involve alerting the subjects of this ability and showing them the proper way to use it, along with the consequences if they don't use it right. The older they grew they'd need to learn advanced chemistry and physics. Not to mention techniques of controlling it, and how to avoid exhaustion.