The technology to make this system happen is all here and functional. It just needs some visionaries to push for implementation.

实现这一原型的技术都是现成的，只需要一些有远见的人将其实施。

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Some visionaries are looking forward to the day when cars will drive themselves.

ECONOMIST: Traffic management: Desynchronised | The

Some visionaries even believe that soon we could be harvesting our food from the places where we live and work.

CNN: Green walls: the growing success of 'vegitecture'

Some visionaries think that this helium might find a market on Earth, though its main use would be in fusion reactors that do not yet exist.

ECONOMIST: Spaceflight