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

But some visionaries argue that 3G phones represent a technological leap so vast that many of the advantages enjoyed by today's market leaders may soon be worth little.

CNN: ASIANOW - TIME Asia | Phone Wars: Episode 3G

Some historians have treated the visionaries as psychotic.

NEWYORKER: Seeing and Believing

The newest of these African myths has been promulgated by some of the self-proclaimed visionaries of the Internet Age.

FORBES: Notes From A Distant Node

The show will offer live panel and one-on-one sessions with some of our industry's greatest visionaries, plus put you face to face with the product people behind the most interesting and innovative devices on the market today.

ENGADGET: Announcing Engadget Expand, a live event and expo for gadget fans!

At some point, when engineers become managers and visionaries become C-level executives, those transitions are likely to be uncomfortable.

FORBES: Success Launching a Tech Company Can Bring Happiness, But Not Always

Some have built major companies from the ground up, others are considered visionaries by their peers, most have attracted controversy.

FORBES: Magazine Article

This Friday ( February 27th, 2009 ), you can join "innovators, entrepreneurs, visionaries, and eco-designers" in New York City to explore some of those solutions, take a look at green gadgetry, and hear from a handful of speakers on the cutting edge of Earth-friendly electronics.

ENGADGET: Greener Gadgets 2009, this Friday in NYC