...or technology from a old human civilization. (for those who dont belive in aliens)
How do you find it? Well think of a random scenario. (for example you find it in some old cave)
This technology allows you to take control of another human being. However in the process it destroys your body. (just makes it usles, not evapurating or anything else). With this technology you overwrite a brain code of another human into yours (in other words you push his soul out and you replace it with yours for religius people).
So you can steal any other persons body. However....there is a problem:
*The portable machine is using a energy source that you cant replicate (yet) and it takes 10 years to recharge.
*The human you steal body from can die next day (virus and other stuff). So you need to be very carefull.
*If someone sees you doing that, they will probaly tell someone else (and there is a chance that you will die or be sent to jail), so you need to be carefull or you need to kill that person fast.
*When you use a machine it takes one day for you to come back to your senses. (coma)
Now the question.
A) Would you use this machine?
B) Would you give it too someone else? (like your country president)
C) Would you change your sex?
D) Would you take control of a rich person or just a normal one?
E) would you ignore it and place it where it belongs?
F) Stuff i forgot
Anyway...its a way of immortality. Similar like that movie where they move a mind into a clone body.
And before you ask, a human can be reprogrammied to think differently. Just not taken over by someone else (yet).
http://en.wikipedia.org/wiki/Brainwashing