Explicit arrays are what I consider the most important advantage of JSON over XML. In XML, every element is repeatable by default and only out-of-band specifica

Explicit arrays are what I consider the most important advantage of JSON over XML. In XML, every element is repeatable by default and only out-of-band specification can restrict cardinality. Two bytes extra per array, that convey so much structural self-documentation that is just not there in an XML document. So JSON succeeded because XML is not verbose enough? Really did not see that one coming.