Bosons and dark matter and energy...

Being the high school dropout that I am, I have a couple of questions about all that excitement over the Higgs Boson and what it tells us.

Firstly, the experts tell us that the visible matter in the universe isn't nearly enough to account for the massiveness of it all. They estimate that 96% of the universe is composed of dark matter and dark energy, unseen by our sensors.
This means that everything we've learned about our physical universe so far has been learned from the 4% of it that we can observe and calculate. That would prompt me to ask just how smart we really are, if we're trying to learn about something based on only four percent of it. I'd have to say that's hardly a good representative sample.

Secondly, and in somewhat typical human fashion, we're testing it by destroying bits of it to see what the wreckage looks like. It works for other tests, like the safety tests on cars, or for how long something runs before it breaks down, but should this apply to our universe itself? What if we started something we couldn't stop? Then what? 

And all that talk about The Big Bang - as if nothing at all preceded it. This Big Bang is described in terms that suggest an unimaginably large thermonuclear explosion, such as might occur during a supernova or the detonation of a hydrogen bomb perhaps. That begs the question of what caused it, and where did that come from or go to afterward. There seems to be a large part of the story untold and perhaps even unanticipated.

Maybe that 96% of the universe composed of the dark matter and dark energy is that part of the continuum which our senses and devices are unable to detect.
Or, as Albert Einstein is reported to have said, "The commonest element in the universe is not hydrogen, but rather stupidity." Old 'Uncle Albert' was a smart guy, even if he didn't find the unified theory of everything.