FireWalker,
Wow just realized that came out all wrong. But I think you can imagine what I was getting at.
I searched around a little online and only thing I found on "Promise Language" is what has to be your blog. I saw no reference on how to get setup. But I did see lots of other stuff that might be similar, all trying to get a piece of the crypto. Is this something you are thinking about to get started or already out?
Another thing I thought of. .just throwing out ideas at you. So forgive me if I'm way off. Let's say you have a bunch of "promises". And some are to repay in bitcoin, some are to repay in bananas as you said, and lets say frog legs, or whatever. When you mentioned all this, I was thinking ok how can I make some money off this, whats my incentive. Then immediately thought wait am I already "corrupting" this thing lol. So figured ok maybe it's simply an ideal and not realistic. But anyways, back on making some money. So shortly after this exchange is setup which wow to think of playing in an unregulated exchange is wild (with only an arbitrator as in the diagram in your blog, and no thorough court system), but none the less let's go with it. So Danny boy over there he has a "promise to be paid" in frog legs. But I know that frog legs are rare because I have cornered the market. By the way I don't like frog legs lol. But I'm looking to make a buck. So I decide to buy that contract because I can deliver at a profit. Then it's not long til Jimmy John the sandwich maker guy decides he can do the same but in bread because he sells a lot of bread. So then you get the point.. it's not long til you have a full blown exchange taken out of the hands of current markets and the government. And why would anyone that prints the money then lends it to make money then charges again for transactions.. allow that to happen? Maybe I'm missing something. But I don't quite see it "ending monetary science" unless maybe if there was a sort of monetary reset due to extreme shock. But in that case as some have said, isn't it better to own shotguns and AK-47s.. food and water