How does it work?
Originally posted by Symmetric Chaos
Many different ways. Some of which make little or no sense at all.
I know of two ways...
1. Matter Polarization, which takes advantage of the fact that matter is mostly empty space. Therefore, if you align the atoms just right, two solid objects can pass through one another, like galaxies passing through one another. The problem with this approach is that you still have energy field interaction (electromagnetic), which would probably generate a lot of heat and disrupt the two objects anyway.
2. Higher Dimensional Passage. A Flatlander is trapped by a circle. But a 3D being isn't because it can move in a third dimension (not really going through the circle, more like up and over, but the result is the same). Advantage: no energy field effects. Disadvantage: you need to access that higher dimension (if there is one). If you have to create one, that takes a helluva lot of energy.
I was just curious which method comic physics tends to prefer, or even if there was a third approach I wasn't aware of. Bit it seems like it's mostly the MP approach characters tend to use.
Personally I would prefer intaginbility along with a few people to tell me "Hey look out!" over invulnerability.
Yeah, invulnerability has the advantage of always being "on." But you can still get knocked around or get trapped. I suppose intangibility coupled with a warning sense would be the best way to go. For building excitement in a story though, intangibility might be harder to write around w/o PIS/CIS.