[PORTAL PHYSICS IS NOT COMMON SENSE]

The game Portal by Valve got me thinking...

If portals were real, what would be the physics behind it? Would it agree on the current day analysis, or even the theories? What about the proven facts? Would they, by the use of portals, be falsified and violated?

What about gravity? It's a force we cannot avoid unless we can tunnel right through space and end up in a non-spacial matter with no logical gravitational field. What about time? Would we, in effect, be violating the speed of light?

When on a massive object (planet, bleh), we're being forced by a single gravitational forcefield. But when two portals are open, both in different orientations, which gravitational field will act on the subject, if any at all? Will they both let up? Or will they both pull together? If so, will the subject maintain balance, or will it's center of gravity be thrown off?

What about indirect malfunction? If one portal was opened on a flat surface and another on a smooth curved one, would you go into the flat portal and come out into a world that's distorted convex? Will you appear folded or distorted to other people?

And light functions? What about time warp? Is it possible to deny gravity and obtain free-fall at the speed of light? Can we, in effect, violate every physical law that binds us?

And what if the portal breaks down during transit. Do we die? Or do we get transported to the dimension being used as a portal slingshot?

We need a true blue observer to answer these.

Portal physics isn't common sense. It never was.