1. I'm just wondering if time and space are realy two aspects of the same thing, prhaps on the string level, each can be partially deformed, more or less, into the other? Since they're basically the same generically. So there might be some kind of meaning in talking about at least three dimensions of time,i.e. 1-D might be duration, 2-D might be wider duration, 3-D might be deeper duration. If time and space are somehow convertible, that might explain some anomalies, such as modern coins being found in carboniferous strata, etc 2. String theory apparently assumes there are 10 or maybe 11 spatial dimensions, and 1 temporal dimension. It also seems toassume that gravity is the same force through all dimensions. Since these dimensions are originally are curled up, I am going to assume that every object exhibits at least one higher, and maybe every higher, and maybe lower dimension. If a straight line deformed into a circle, a 1-d observer would see less of it. The line would appear to shrink. If the line was massive enough, the pull of gravity would be deflected from the observer. If a circle deformed into a sphere, the circle would also appear to shrink to a 2-D observer, and the horizontal gravitatational pull would decrease as a vertical pull manifested itself, if the sphere was quite a bit larger than the observer. The 2-D guy would feel a strange tug 'upward,' which would be eerie. If a sphere deformed into a hypersphere, the sphere would appear to shink. The hypersphere would not necessarily enclose the observer; it might still be in front of him, I guess. If it was massive enough, and large enough, he would feel a strange tug, but I can't even imagine it. By analogy, the forces of horizontal and upward gravitational pull would lessen. and a new kind of pull would increase, which would be eerie too. If time and space are two aspects of the same thing, then thinking just in terms of higher spatial dimensions might be misleading. 3. I am wondering if sound can unite or penetrate all the dimensions? Could a 4-D person talk to a 3-D person without being seen? I am not sure if electromagnetic waves would. Sound just induces a resonance. But apparently gravity can penetrate all the dimensions too, so I wonder if there is any connection between gravity and sympathetic resonance? They seem totally different. OM! (Nothing happened.) 4. Finally, and irrelevantly, in Brian Greene's book The Elegant Universe (Cloth, 1999), p. 197, Einsteain developed a more congenial attitude toward Kaluza's idea of a 4th dimensional space that unfied gravitation and electricity. Did the alleged 'Philadelphia Experiement,' on which Einstein and Tesla are supposed to have worked, occur in that time frame? Apparently, the idea was to use powerful rotating magnetic fields to produce invisibility; maybe this has something to do with photons carrying electromagnetic charge, and producing cancellations in the photon fields. But apparently time and space went crazy.. Oh well. Stuff happens.