Well the very worst that an happen is money collapses and people start bartering with goods and services.
That form of economy is as old as teh earth.
This will bring about large suffering, for the reason
people don't make goods any more. They are produced in such intricate factories/production chains/networks, whose productivity is fully dependent on the ease of monetary transactions. Making a pencil, for example, takes 80 procedures, and nobody masters them all. If you would 10-double the loss in every stage when making the pencil, the pencil would be 10 times more expensive, and our living standard would take a 90% hit.
