214 Timeconsciousness in Very Long Life are designed so as to distinguish time and space. It gives time attributes that cannot be represented by a simple imaginary operator. Nor do neural pulse trains in our brain distinguish between space and time. On the other hand, music provides a prime laboratory to examine our relationship to time. TIMECONSCIOUSNESS AND THE EXTEND LIFE In considering greatly extended life we need to reflect on the following (these points cover only a few aspects of concern related to time; we shall here leave out social concerns): Until timeconsciousness is understood sufficiently to enable computers or robots to have it, and until they become con- scious,  extending  life  beyond  the  limits  imposed  on  the materials  from  which  we  are  made  today  is  not  possible. Replacing   biologic   materials,   homeostasis,   metabolism, human reproduction and of course memory and thinking (as we know it today, insofar as we know it at all) with more stable non-biologic materials, nanotechnology, and biostruc- tural design will suffice only once we know how consciousness arises. I am convinced that consciousness is not a function of complexity in itself, nor that a very high degree of complexity is a prerequisite for consciousness. It is something else. Once we will know how to create consciousness, we are in a totally different world compared to which cloning will be mere child’s play. It may be only hundreds of years before that happens. It could be thousands. No one really has a clue today. To me a salient thing about consciousness is that the more one removes its contents, the closer one gets to ‘pure conscious- ness’ i.e., contentless consciousness. Helen Keller was not less conscious than most of us, but probably more so. Various sensory inputs interfere relatively little with one another in consciousness, we can hear, see, smell, touch simultaneously