Should the world unite under one all powerful democratically elected government system?
A government composed of a couple of hundred leaders who come to decisions unilaterally; a group of people who control one global army, police force, space program and people who can effectively organise the world's resources and problems such as poverty and disease. A system which can give us more hope in the future when oil and such runs out.
ADDITION:
The government would be controlled by several smaller groups who have the power to overt turn the government!
If the government did something bad it would be kicked out. It would also never be able to do what it liked. The smaller leadership circle would mean less corruption and other political things. Everybody would have many people watching their actions.
The system's mean that if you did something wrong then you would be penalised accordingly.
Army to keep order, like in middle eastern countries where there may be some "rogue states."
Power is realativley distributed, no one person has all authority. It would act like a jury.
ALL powerful in reference to decision making, not all powerful can do anything without being stopped.
All this would have been included but I tried to get you to come up with some ideas of how it would exactly be run!