That's dumb unless you are only bartering with digital things. If you are bartering with physical things the computer can't help you outside of being a calculator.
Discussion
How does a computer fix the coincidence of wants problem?
Doesn't need to.
You issue tokens for your goods/services. No need for currency other than your commitment to give, for example, one hour of labor for each token.
Everyone in the network does the same.
Failure to honor token redemption results in reputation loss.
How much of their stuff you get in exchange for yours is determined by expectations defined by both parties beforehand in their respective token issuance smart contracts, and calculated automatically by the network (fairly simple algorithm).
This should work well for medium-sized communities.
No more "prices", no more speculation of any kind, no inflation (or deflation), only reputation and commitment.
100% networked barter.
That is retarded.
We already did it in a small community, pre-computer era, it works.
To give you a easier to understand example:
Suppose you want to buy a car that another member of the community built and is selling.
The "price" doesn't exist, so how do you know "how much" are you going to pay for it?
You ask the network (the computers), and they tell you "this car costs 1420 JOE tokens".
You know perfectly well how much each JOE token costs to you, because you issued them and you redeem it regularly! They cost you each one hour of hard work.
The tokens don't go to the former owner of the car. Instead, on YOUR account you get -1420 JOE credits.
On the other hand, the former owner of the car gets a positive amount of HIS tokens credited, in a proportion calculated automatically by the network, based on a simple algorithm (consensus rule) that compares different token issuance smart contracts of all members of the community.
You then "owe" the community 1420 JOE (labor hours) that will be have to be paid back every time someone requires your services.
For that to happen they will have to have enough of their own tokens (enough according to the algorithm).
And once you accumulated enough JOE (credits) you can buy another car or whatever you require from any member of the community.