10 1 Introduction: Divided Presence in Mixed Reality while driving is a challenging, hazardous, often illegal and yet not uncommon activity in modern life. Applying human-experiential design to this case would in principleenable the writer/driverto both communicate(in digital space) and control the vehicle (in physical space) as an integrated activity within a blended reality space. Chapters 6 and 7 of the book provides case histories and scenarios of real life situations that can be seen as early examples of physical/digital blending, bringing outinapracticalwaythevalueofhuman-experientialdesign.Weconcludethebook withspeculationsaboutfurtherdevelopmentsandprovideavisionofafuturewhere weall live and function in a blended reality that is both physical and digital. Human-experiential design of physical-digital materials and environments has the potential to impact on our lives in several different but ultimately interrelated ways: • Firstly, our mental activities will be changed along with some of the ways in which we carry out our intentions. An integrated sense of physical/mediated presence can potentially provide a smoother link between our intentions and actions in mixed reality. • Secondly, the way in which we perceive and function with our bodies – our sense of our own embodiment – is changed when we perceive ourselves acting fromthealtered perspectivesprovidedbytechnology.Dependingonhowaltered embodiment is designed, this can impede or assist us in dealing with mixed realities. • Thirdly, the widespread transformation of our social lives with technology is ongoing and ever expanding. This can lead to a reduction in our sense of the reality of others, but also to situations in which we share more information with othersthaneverbefore,andinwaysthatwerepreviouslyimpossible.Howandin what respects we are aware of others should depend on the contextual situation in which we find ourselves. • Finally, the digital transformation of physical places is a growing product of designed mixed reality spaces, both through architectural installations and throughmobile andwearable devices. Wehavesuggestedthatthephysical/socialworldinwhichourbodiesarelocated andthevirtualworldofdigitalinformationandcommunicationata distanceshould somehow be blended into one seamless reality, so that we can function smoothly andeffortlessly and enjoy the best of both worlds. We have the technical means, but howcansuchasmoothblendingbe achieved?Can we design truly blended reality spaces, and how might we go about doing that? First, we have to recognize the problems with existing design approaches.