We can no longer predict how people are accessing our websites now, let alone in a few years time when the technology people use to access the web will inevitably diverge even further, and perhaps in ways we havent even considered yet. Rather than seeing this unpredictability and lack of control as a problem, we should embrace these known unknowns and the inherent flexibility of the web. Put simply, responsive web design is about being more flexible and assuming less about our users, from how theyre accessing our websites and what technology theyre using to their environment.