Historically, we've IxD'd in a human centric world, Kevin is pointing
to an era where technological systems are becomming so complex we cant
and wont ever be able to understand or control them, we can only
evolve them in a biological sense.
I believe this will lead us away from a UCD 'the user is right'
landscape to one were Designing must incorporate the needs of all
systems in a given interaction more equally. Currently we consider
the constraints of technology and design with that in mind. In the
future (if not already) Interaction Design will become the creation of
a interoperational language that enables effective collaboration
between Users of that language, be they Humans, Machines or Data.