RF Generator Burns Water

One of my friend sent me this video about a guy using an RF generator. Radio waves to split water into hydrogen and oxygen. Now if you look at the comments on the original page where this video comes from you will see a lot of differing opinion about whether this can work.

I always say, maybe it can’t work in itself, but creative imagination can combine an aspect of one hydrogen discovery with another one and create a workable system.

For example: The biggest complaint about this guys system is that the energy efficiency is the question here. How much energy is required to produce the RF. Perhaps this can be solved someone. RF waves are possibly quite abundantly produced naturally. Is it possible to concentrate RF waves somehow?

In this exciting field there are more questions than answers, but people standing by the side of the road saying it can never be done, are possibly not helping.