THIS VIDEO lays out A21 in the most basic!, eloquent!, plain-speaking!, eye-opening!, ALL-encompassing!

 

And, as a bonus: pleasurably-entertaining! way..full of wow.
and it could not be more RELEVANT to the mess we are in today.
very special note:
to those who auto-gag when they see that icky word..'democrat' on the banner behind the speakers head, i CHALLENGE YOU to just listen to the speakers very first OPENING line..
:)