Thank you for completely ignoring the point of my post.

You have made no attempt to address previous classified technology and how they created a "paradigm" shift, or even any impact on the general populous.
Already a biased statement. What shadow government?
An often misused way of selecting statements you want to believe.
"Many"? Compared to what?
Out of the volume of sightings reported, even the 1% translates into "many".
And that's even ignoring things people see and don't report. I have seen (what I consider) a UFO a few times. I never reported them, but I did take the time to understand what I saw. Guess what? none of those sightings was anything out of the ordinary. They were just things I've never seen, or seen from the perspective I've seen them from.
Like?
What evidence? We have hearsay, and physical evidence which is only a documentation of that hearsay.
That statement has absolutely nothing to do with my question. My question has to do with previous examples of "paradigm shifts".
And what is this "suggested" statement? And disclosure of what was planned?
I am glad that our government can keep some of these secrets. I feel safer that our enemies (whoever they are, or will be) don't know about them. And; I know as these technologies start to become ineffective, they will start spawning consumer technology advances in the future.
History has already shown that.