I think a Prezi or animated video just on the evolution of money, from the "money as memory" perspective, would be a helpful start. The video could begin using Wences Casares' example of the tribal people giving away buffalo meat in exchange for a future favour (ledger stored in the tribal memory), to the need for an analog ledger (based on gold) when human trade patterns became more complex, to paper money more recently, and finally to bitcoin implementing Kocherlakota's money-as-memory function almost exactly.
I'd contribute a coin or two, and perhaps help with the script, if someone wanted to drive this forward.
That would be excellent, probably the best first area of coverage for this, though I do like
Xapo's video quite a bit on that point, almost as is.
One thing I think a prezi can be really great for - though I've never seen it used this way - is for answering or anticipating objections. In running text (or video) you have to address each objection sequentially. Everyone who doesn't have those particular objections has to skip around through visual scanning and skimming. Ultimately you either present something that answers every little thing a newbie might wonder and puts off people with more familiarity, or you skip details and leave much of the audience in the dark or with a distorted view.
Especially with regard to economics, you have people who understand basically nothing, people who understand the micro aspects that the mainstream gets right (and usually believe mainstream macro), people who are pretty up on Austrian-style economics, right on up to people for whom almost every economic point needs to only be hinted at for them to get it. That's can be a daunting problem for a presentation to a broad audience.
With a wiki structure you can address this to a degree, but there's that "trivial inconvenience" of clicking through to a new page that isn't really so trivial. With a
visual wiki structure like in Prezi you can make it a simply matter of zooming in with the scroll wheel on any point that you need more clarification on or have objections to. And if you have an objection to the answer, you can zoom in more and get that concern addressed as well. Zoom back out to return to the original context, and even zoom out further at any time to see where the thing you are looking at fits into the big picture. And if you're already convinced of the point in question, you never even have to know that additional content exists.
It's actually quite easy to set up and add to such a prezi, since they can be freely forked. Just click "Save a copy" and start adding your own changes. Perhaps Github could be used to track the versions if it gets that complex, but initially with only a few people working on it that shouldn't be a big deal.
Speaking from experience of using prezis in debates, I've found I can often slap together a decent one in as little as 20 minutes. Usually no more than an hour or two. And almost every time I've done this the payoff in the debate has been incredible. It's a very high-leverage tool for the time it takes, and I find myself referring back to them over the years, modifying them as needed, etc. You do have to have your thoughts quite well organized to do it effectively, though.
As far as turning it into video(s), I think that could be a natural outgrowth of creating such a visual wiki. Once enough detail is there, making videos of the unpolished kind becomes almost trivial. As for polished ones, I can't really speak from experience but I imagine it would be quite a help. I lean toward thinking that with the amount of content that needs to be covered it may be too much to make a bunch of polished videos. Prezi looks polished and interesting enough on-screen that simply narrating over it can look pretty nice. It's not super-flashy but it gets the job done as far as explanatory power and succinctness while helping the viewer keep track of context.