Bilocation

One major fantasy most humans have at an early age is to have a twin. Having an identical twin could be so cool until one realized that they and their twin would battle over who gets the better end of the stick.

When we are older we think about how cool it would be to have a clone that we could command to do all the things we find unpleasant. Then we come to the realization that our clone could get us into a lot of trouble. If your clone screws up, guess who will be blamed.

When one gets even older, the fantasy changes to bilocation. How convenient would it be to be two places at once. I have so much work to do at home, yet my services are needed in other locations. It would be so cool to wake up in the morning and walk into a splitting device (after breakfast, two can eat as cheaply as one if one doesn’t eat) and then off we go in our different directions.

Some say this is already possible. The device is called money and with it you can pay someone to do your bidding and you can stay home and take a nap.