I think you need to google the definition of 'generally'. A list of narrative exemplars does not refute an assertion of proportion.

Like the first google result for payments volume yeilds this: http://www.gfmag.com/component/content/article/119-economic-... As you can see, credit transfers dwarf everything. It's worth noting that all of these payment types are cleared electronically (including checks).

I sincerely doubt gold bugs and Persian carpet fans are trading at total volumes of 100's of trillions of fucking dollars globally.