present critical questions for HCI and IxD, including how we can support the design of new forms of technology that give value to money so that it is interactionally usable but also useful: credible as a form of financial exchange and understandable as a mechanism for economic transaction.

Bitcoin is a case in point for
usefulness and usability. As it stands,
the distributed ledger technology that
underpins Bitcoin is highly unintuitive
for non-experts. Its design is
deliberately oriented toward payment
privacy and inflationary stability,
lending itself to two well-publicized
primary uses for the currency: criminal
These technologies not only offer new
ways of interacting with money but
also can transform our understanding
of how financial operations occur, how
to make sense of financial information,
and how these new forms of money or
payment methods change our social
interactions. Such developments

IInsights → Increased knowledge among organizations about our financial lives has both positive and negative consequences for citizens. → Financial transactions are intimately bound up with social interactions. → New forms of money and financial service are valuable only if they can be woven into the ways in which we live and act.

Mark Perry, Brunel University London

Designing Interactions with Digital Money