How much of the Universe do we know about?

I would imagine that our knowledge of the Universe depends on how much development there has been in the human mind - as the human mind develops there becomes an increased ability for mankind to understand more and more of what exists and has existed in the Universe throughout time - only now human kind is becoming more and more capable of comprehending what exists - …………………………………………….
11-25-2013HABCDEFGHIJK by Walter Paul Bebirian