Ok... I will step up and play. Hiya Starcat, Mikado and those who post after...
The interesting thing when one talks about proof of the metaphysical is that proof is HIGHLY subjective and the requirements for such can only be dealt with on a person to person basis. Unfortunatly this is also true when we talk about any new kind of science and/or discoveries that perhaps fall outside of the "official or authorized or even approved" subjects.
While some say seeing is believing. What they fail to recognise is their own ability to work out how the senses are often fooled and also are not that reliable in picking up all the needed information.
I will state here that yes I believe that the metaphysical is possible. My burden of proof was met many times over.
There are some though that no amount of proof will help and by the same cosmic token there are some who will believe anything. Including what so called imaginary friends have to say!