Well, we do know a few things, but sadly there are too many people who think they know, but really don't, and will not budge from their stance, despite evidence . I prefer to acknowledge that we don't know, while continuing to seek answers. Thinking we know can sometimes be dangerous. Those are my thoughts on this meme anyway.

unfortunately, we are not.

I admire your unbridled optimism

I used to think that people were ignorant because of a lack of access to facts, the internet has proven me wrong.. plus the more we know, the more we realize that we do not know.

We don't know jack yet.
We're even ignorant about which subjects we're ignorant about.
The difference between knowledge and ignorance is that knowledge is limited.
As a species we're just beginning.

Facts...evidence, proofs...so much more....satisfying!