Theoretical articles like this ("proving" that X won't work) are almost always doomed to be wrong, because you can't enumerate all possible ways that something COULD work, but won't.
A shorter way to say that is that something can fail thousands of times, but only has to succeed once. If the right technical, social and business factors come together, you get working micropayments.
A shorter way to say that is that something can fail thousands of times, but only has to succeed once. If the right technical, social and business factors come together, you get working micropayments.