a) He performs, under controlled conditions, an actual experiment that confirms his theory.
b) His results are independently confirmed by other researchers.
Until then, this is not science. It's just one man's imagination, aided by a partial knowledge of quantum mechanics.
OTOH if he's able to perform an experiment successfully (under controlled conditions) the results of which cannot be explained by other known phenomena and especially if other researchers can duplicate his results, then I'll change my mind.
If you watch some of his other videos he invites everybody to review the data and duplicate the experiment.
He is definitely not alone and not the first one to perform remote viewing.
In fact even a "single" remote viewing experiment consists of multiple sessions performed by several individuals and each session is given a weight based on the clarity of the results.
The overall outcome of the experiment is determined as success only if enough sessions independently demonstrate the same result. So it sounds like scientific method to me.
How is the success of a result measured?
The procedures are quite rigid, they determine the properties of the target in a binary format (yes/no).
For example, is target man-made or natural? Is it solid or liquid/gas? and so on.
So if enough number of independent sessions converge to the same results, the experiment is considered successful.
You can watch this video as an example:
http://www.youtube.com/watch?v=qWkr7pOWQZ0
Their evidence is people agreeing with each other. Is there literature of some sort (not a book) that I can see.