Micro transactions would open up new business opportunities. And I don't find it very taxing when for example going to the grocery store where you make a lot of

Micro transactions would open up new business opportunities. And I don't find it very taxing when for example going to the grocery store where you make a lot of small purchase decisions. One concern though is book-keeping and tax rules if you run an international small business - but I guess that can be automated too ... So that the state automatically get their VAT from every transaction and in turn provides a payment system completely free from transfer fees.