Shadow and fog are funny things... If this was being envisioned and engineered by a non-haole, I might dismiss the idea as well, but you've got someone that actually does the work and then posts. All the actual Vortex Tunnels use a stationary bridge and most don't use expensive expanded metal decking so you've already got a non-moving bridge disrupting the effect. I can personally attest to the effectiveness of the tunnel with a stationary bridge. In all circumstances, though, I never-the-less wished the effect was longer than the typical 20 or 30 feet. That gets more difficult with a bridge involved. Lights are cheap and they only limit your length to the size of the room you're projecting them in.

As far as the light haze goes, having faint spokes of light spinning all around you instead of just dots on the wall is a more immersive effect, not too unlike scuba diving through a cave with light shafts or walking through a forest canopy in the early morning with sunlight beams fighting to get past the leaves. But, I guess if you've never seen it before and I haven't posted a video....you'll just have to trust a guy who tried to do things the expensive way and found that cheaper is better. As soon as I get a video, I'll post my version 2 of the vortex tunnel effect so we all can enjoy. Thanks for the questions and comments!