I was never a fan of Star Trek: The Next Generation — I watched the only Trek that mattered, the one with James T. Kirk, dammit — but I did find the concept of the Holodeck, a 3-D interactive simulation chamber, fascinating. Holograms themselves are fascinating — three-dimensional but insubstantial, only as heavy as light. Holography was invented by Nobel

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Dave Webb is a freelance editor and writer. A veteran journalist of more than 20 years' experience (15 of them in technology), he has held senior editorial positions with a number of technology publications. He was honoured with an Andersen Consulting Award for Excellence in Business Journalism in 2000, and several Canadian Online Publishing Awards as part of the ComputerWorld Canada team.