What's your circle of people? 

I mean really? 

Maybe some of the people I know directly know about Bitcoin because I talk about Bitcoin quite a bit, but if I venture outside of my circle, people really don't know, and if you ask them about it, they really do NOT know much of anything.

Maybe the word has gotten out in the last couple of years a bit more in the places of the world with decent internet connections etc; however, I would still venture that a large number of people really don't know much of anything about bitcoin.. even when they say that they do.

Maybe in technological circles we may have 20% having had heard about it and maybe less than 10% have a decent grasp of bitcoin..

Now if you get into non-technological circles, then I would surmise that less than 10% have heard of it and less than 5% can really articulate anything about BTC.

overall, we need to get real about this knowledge of bitcoin matter, because when we come down to it, there are likely less than 10 million people world-wide that have any BTC holdings now or ever in the history of BTC, and accordingly, that is less than .01% of the world's population.... there is a long way to go, baby when it comes to knowledge of bitcoin.