For those who doubt that psi phenomena are real:
There are some of you who have read many parapsychology papers, popular books on the subject like Entangled Minds, Best Evidence and the like, and academic tomes such as Irreducible Mind, as well as anti-psi material. To you, I tip my hat. You have exposed yourself to some of the best evidence for psi phenomena and against it, and so your opinion is informed by the relevant facts. You bring value to the discussion.
But for the far larger community of psi deniers who have not read the literature of evidence for psi, and get all your information from the Shermers and Randis of the world, I have a simple message: you are uninformed. You are unaware of the enormous amount of evidence that these phenomena do occur and cannot be explained through "conventional" reductive materialist theories. You are taking an essentially faith-based position regarding the non-existence of psi phenomena. And I will no longer engage in any extended, time-consuming debates with you, until you familiarize yourself with the relevant literature. Because, frankly, your opinion on psi is worth very little, since you are judging it without possession of the relevant facts.
Feel free to convert yourself to the first kind of critic, which only requires some study on your part, although I cannot promise that you won't end up changing your mind. . .