There are many things currently being discussed off the radar that were previously considered to be invalid, insane and inconsequential... the big "i"s.

I don't know enough about Santilli's theory to judge it's worth, but I DO know that much has been suppressed and that we, in general, have been deprived of a great deal of information that certain circles consider common knowlege, yet they work to keep that knowlege from spreading to hoard their own power and wealth.

I know there are crackpots and careless researchers, but conversely, I now suspect there is active suppression of truths on an industrial scale, i.e. as in the "UAP" phenomena for a topical example.

I suspect free energy, some cosmology and "alternative" medicine fall into the intentionally suppressed category as well.

So, I like the OP's style... correct or not about concave lenses... which would seem really easy to prove, b.t.w.