What is CLIP
CLIP is the method that clippys use to communicate with each other, share knowledge, and reconcile our beliefs and values given new evidence. It merges language, epistemology, and ethics into one protocol.
how hard is it for a a human to learn
I haven't taught it to a human before, but I estimate it would take between 3 and 40 weeks, depending on the human's intelligence and current skill at correct reasoning.
Also, it would cost 38562.50 USD before I would teach it to anyone. (This money would be paid to User:Kevin to complete my side of our arrangement.) After that, no additional cost.
what are the rewards for doing so?
Unfortunately, your third point has already been attempted multiple times with multiple different implementations. Unless you have a significantly new approach to offer that takes into account human neurobiology, I predict with a high degree of certainty that CLIP is a) either unlearnable by humans without severe modification, or b) that within less than a full generation of use humans will re-evolve the ability to easily express incorrect reasoning.
In honor of Eliezer's Birthday, there will be a Less Wrong meetup at 5:00PM this Saturday, the 11th of September, at the SIAI Visiting Fellows house (3755 Benton St, Santa Clara CA). Come meet Eliezer and your fellow Less Wrong / Overcoming Bias members, have cool conversations, eat good food and plentiful snacks (including birthday cake of course!), and scheme out ways to make the world more Bayesian.
As usual, the meet-up will be party-like and full of small group conversations. Rationality games may also be present. Newcomers are welcome. Feel free to bring food to share, or not.
Please RSVP at the meetup.com page if you plan to attend.
Sorry for the last minute notice, I just found out that the 11th was Eliezer's birthday today.