The big issue is the transference of consciousness.
There is ZERO point in just making a copy of my mind. Zero.
If this has to happen, it has to be a complete transference of mind into a new body. AND it has to be self-repairing as well.
You seem to assume that 'conciousness' is something beyond the physical processes of the brain, which there is little good evidence to support. I tend to believe (based on the evidence) that conciousness is part of the processes of the brain.
I don't think we'll be able to duplicate/copy a brain for a very, very long time. I'm not even sure that is a worthwhile goal. I do think we will develop computers/electronics to the point that we will be able to arrive at what the brain does in a purely electronic fashion, which will then be expandable far beyond what a biological brain can achieve.
This, of course, will not happen at once. It will be a transition from pure biological (now), repair with electronics (lead by replacing lost functionality through accident or disease), supplimentation by electronics (to give competitive edge), until eventually the biological component won't be required.
USS_Triumphant said:
So far, the assumption in the thread seems to be that human minds would be data dumped into robot brains. How about this: one day in the near future, we discover that we are capable of building robots with computer brains that learn, grow, and feel. They are started as "babies" and develop much like a biological human - only without the limitations of an organic mind and body.
...
Good points. If can be thinking/concious electronic beings, life would be effectively eternal. The imperitive to create 'off-spring' would not be as big a deal as it is now, if such a need would be perceived at all. Why not spin off fully functional 'kids'? Why spin them off at all? Eternity is a long time, would you want to clutter it with more and more 'voices' in your head?
Once we become 'virtual', exploration of previously overly dangerous areas are now available. We send probes to Mars, so we could send a virtual conciousness as easily. Time is no longer a constraint, so even interstellar exploration becomes feasible. Even our perception of time would change as the result of greater processing speed and long life.
Individuality as we know it may disappear. There may be all sorts of "subsystems" that we cooperatively use. For example, all knowledge would be available to everyone like recalling a memory. Perhaps 'marriage' becomes a merging of persona, eventually leaving one mega post-human.