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ATLANTA (CNN) -- Whether we are commuting to work, flying to business meetings or watching as explorers venture out into space, human activity is relentless. In a world that is constantly in motion, what does the future hold? (Full story)

Where do you think the biggest break-throughs in transportation will come from and how will they effect our lives?

Anti-gravitational technology. Tried to introduce it, but no one interested. I ask you, why?
Dr Barbara Young, Vandalia, OH USA

the 'big thing' in aviation will be in 15 years time, I'd say the Airbus superjumbo. Supersonic suborbital jets will be the province of eccentrics like Richard Branson and the like. I've nothing against the man, but I hate to break it to him -- he will not 'lead' the way. Thousands of geeks tinkering in their garages on low-budget gadgets will.
Michael Murrithi, Nairobi (Oct. 4)

The magnetic train will be popular in coming years especially in coutries with large populations. The increase in tourism will have a large impact on where and how we travel, especially in Asia, but it's important to develop sustainable tourism.
Sidhi Turker, Denpasar, Bali, Indonesia (Sept. 26)

I think cars and trains will be a thing of the past in 60 years and the primary mode of transport will be air travel. Even underground transport might be developed in some countries on a large scale but the most profound development will be that of a city wide magnetic transportation system not for people but for goods.
Anand Swaminathan, Sharjah, UAE (Sept. 26)

We should work on real cruise control, which can drive a car all the way to the final destination. The driver could even take a nap.
Lester Ferenc, Cincinnati, Ohio, USA (Sep. 26)

In the academic field of science and technology studies, consensus has been reached on the thesis that technology is a social construction. So shouldn't we be discussing the latest developments in terms of social construction rather than from a technological deterministic way?
Gerhard Goedhart, The Netherlands (Sept. 25)

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