bkwormlisa wrote:Weird Harold wrote:I think you're misunderstanding "Buoyancy" as opposed to Buoyancy -- note the quotation marks.
What I meant was that portals treat possible locations as if they were all liquid and portals as if they possessed the relative density that would make them "float" half submerged in bedrock.
I haven't tabulated all known portals, and I haven't read the series in years, but IIRC all known portals are associated with immovable bedrock on both sides of the portal. Also, IIRC all known portals touch both air and bedrock. That would seem to preclude underwater, completely underground, or aerial portals; although such portals would tend to be "unknown portals" if they did exist because they wouldn't be where they could be discovered.
Yes, all portals so far have been anchored in ground, usually half ground and half air. No water portals that we've seen. But there was speculation earlier in this thread about how the whales and dolphins would be able to help, and the possibility that there were portals that were totally underwater. At this point it's pure speculation.
Uh, guys, the vast majority of the Fort Salby portal is buried in solid rock and earth. And if anyone is speculating that every portal must be anchored in solid bedrock or something of the sort, I'm pretty darned sure none of the portal theorists in the books has ever said anything of the sort. Now why they might not have said it is another matter entirely, of course.