I have been very interested in virtual world such as Second Life and its application in education and training.
My argument has been that it would be better to activate the learner's imagination to create the reality rather than designer's imagination. However, again as I always maintain, it is a matter of choosing the right tool for the right job.
Today, I have posted Looking beyond 2020 - rendered physical reality in Learning 2020. With the advent of rendered physical reality, the matrix of tools obviously increased and we need to think beyond the current box.