PsychoKinesis is the ability to influence physical experiments with your mind. e. g. You choose head or tail, then I toss a coin and you influence the coin to give what you choosed. RetroPsychoKinesis is the same thing, but backwards in time. e. g. I toss a coin and hold it in my hand, then I ask you to choose and you influence the coin IN THE PAST.
There is a project
to study it and find if it exists and the people who possess this ability. Apparently I don't, but let's everyone here try and, if someone here has it, we could buy some lottery tickets. What do you say?