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I mean, making simulations of what you're going to build is tremendously useful if you can get feedback from them that will tell you where you've gone wrong and what you can do about it.

Even though NASA tries to simulate launch, and we practice in simulators, it's not the same - it's not even close to the same.

The most used program in computers and education is PowerPoint. What are you learning about the nature of the medium by knowing how do to a great PowerPoint presentation? Nothing. It certainly doesn't teach you how to think critically about living in a culture of simulation.

Computers are very powerful tools, but in the simulated world of the computer, everything has to be calculated.

The elephant in the room has always been simulator sickness and disorientation. That's one of the biggest challenges.

The computer is not, in our opinion, a good model of the mind, but it is as the trumpet is to the orchestra - you really need it. And so, we have very massive simulations in computers because the problem is, of course, very complex.

With lab courses, we may be able to simulate a lot of that and reduce costs.

Let's take flight simulation as an example. If you're trying to train a pilot, you can simulate almost the whole course. You don't have to get in an airplane until late in the process.

There's an entire flight simulator hidden in every copy of Microsoft Excel 97.

Virtual simulations allow post-traumatic stress disorder sufferers to re-experience the events that traumatized them, and then slowly desensitize themselves to their impact through repeated recreations involving not just sight and sound but even smell.