There are tons of posts about this you can search for above or on asksteem.com but in general you get 30 votes to use on up to 30 witnesses, one per witness. You can set them, or change them at any time as often as you want. You get 30 to apply as you wish.
A proxy selection means you choose to allow someone else to vote for you and your power is applied to whomever they choose to vote for. I represent about 15 peoples votes under mine and they in turn now have their vote power applied to the 30 witnesses I choose to vote for on our behalves.
I guess then from the logic, that proxy voting can cascade. Say one of those proxied to you, also had 10 people proxied to them. Is that the case?
Yes, I can confirm that proxies do stack in a cascading way,
the plot thickens
Gotcha. I understand now. Thanks for the speedy reply :)
Well, I AM a witness, and I am very concerned that people understand us and how to wisely choose from the choices of us.
Happy to help!