Interesting ideas, Max, but I don't recall evidence for them.
0 - No evidence that any portal has caused a volcano.
1 - The center of a portal might be a mile or two higher
on one side than on the other. The wind always blows from
the lower side to the higher side.
2 - No evidence that any portal has ever yet closed,
or disappeared. Of course none has been open for more than
a few hundred years, so closures might still happen ...
someday, or some century.
3 - Every portal we have been shown, has been vertical.
4 - No evidence that bodies of water inhibit portal formation.
DW has hinted, in interviews and in statements at conventions,
that the portals are not natural events,
but are formed deliberately by "somebody."
HTM
Max wrote:
Now, some portals are big, miles across, and high. They are also deep. Where are the volcanoes? You might get the whole planet sucked through one of these thing, slowly..
It's been a while...
I think it would be fairly safe to add some reasonable speculations to this line of discussion in the form of a few fairly obvious rules about portals:
1) The center of each side of a portal has to have matching or close to matching gravitational potentials; The windy portals are basically weather like events, and are not driven by mass shifting. Over a long enough interval, the winds will blow in both directions. Also, no sucking the whole planet out of one universe into another.
2) Since portal creations are a fairly recent phenomenon, (several paragraphs present evidence for that), it is also possible that portals also disappear eventually. There might be some archaeological evidence for "extinct" portals, but somebody would have to be looking for it to see it.
3) Portals require a solid matrix on both sides of their centers to form. More likely, they are a surface phenomenon, meaning that the visible part of a portal will be very close to a semi-circle and the edges of a portal, where it meets the surface, will be vertical, not oblique. This makes the volcanic possibilities moot.
4) Further, bodies of water, particularly salt water, inhibit portal formation, which would put portals in continental interiors, and away from the coasts. No oceanic portals and no spectacular naval battles.
