My Tonja, Toni, does a great presentation entitled " A World Without Money." At 27, Tonja Toni is one of our global 7th Generation leaders in Blockchain Technologies and Cryptocurrency.
My beloved father, always said, Son, if something is true, everyone should be able to understand it. In Tonja Toni's presentation, she makes these two emerging innovations in a manner most should be able to understand, although, if you are 73, you may have to listen a couple times, in some parts, to understand, as me.
Anyway, if you want to better understand Blockchain Technologies and Cryptocurrency, this is the video to watch.