The ideas of psi (precognition, psychokinesis and telepathy) violate well-established laws of physics.
The evidence says psi is physically impossible:
http://en.wikipedia.org/wiki/Parapsychology#Physics
So how do parapsychologists explain this? They just ignore it?
The evidence says psi is physically impossible:
Psychokinesis violates the inverse-square law, the second law of thermodynamics, and the conservation of momentum. There is no known mechanism for psi.
On the subject of psychokinesis the physicist Sean M. Carroll has written that both human brains and the spoons they try to bend are made, like all matter, of quarks and leptons; everything else they do is emergent properties of the behavior of quarks and leptons. And the quarks and leptons interact through the four forces: strong, weak, electromagnetic and gravitational. Thus either it's one of the four known forces or it's a new force, and any new force with range over 1 millimetre must be at most a billionth the strength of gravity or it will have been captured in experiments already done. This leaves no physical force that could possibly account for psychokinesis.
Physicist John Taylor who has investigated parapsychological claims has written an unknown fifth force causing psychokinesis would have to transmit a great deal of energy. The energy would have to overcome the electromagnetic forces binding the atoms together. The atoms would need to respond more strongly to the fifth force while it is operative than to electric forces. Such an additional force between atoms should therefore exist all the time and not during only alleged paranormal occurrences. Taylor wrote there is no scientific trace of such a force in physics, down to many orders of magnitude; thus if a scientific viewpoint is to be preserved the idea of any fifth force must be discarded. Taylor concluded there is no possible physical mechanism for psychokinesis and it is in complete contradiction to established science.
http://en.wikipedia.org/wiki/Parapsychology#Physics
So how do parapsychologists explain this? They just ignore it?