In particular, Vodafone attempted to exploit economies of scale by offering the clunky 3g handsets it was selling in Europe to Japanese consumers too.

But after offering depositors high interest rates, Ponzi never really dealt in postal coupons, which turned out to be too unwieldy for large-scale speculation.

At the same time, you need Domino to scale well, and to continue offering fast response times as the needs and Numbers of your users grows.