"That you have to buy 1 whole bitcoin and that is nearly impossible now because it is so expensive." Although my wife is not a bitcoiner and tolerates me talking about it for a little bit, some of that knowledge is sticking. She was walking the other day and some women asked her what we were in town for (we were there for a bitcoin conference) and this is exactly the statement they gave her. My wife correctly told them that you could buy a small fraction of a bitcoin and do not need to buy the entire thing and that it isn't subject to the whims of politicians or inflation. I was so proud of her!