What if all the Aiel didn't disappear? What if they turned into the ter'angreal using a version of Egwene's discovered weave(as in it is actually a re-discovered weave put to a different purpose)? Aviendha talks about how she tries to use her talent on it and can't sense anything, but when she gets frustrated and basically asks it to show her something to help them have a purpose it does so.

The idea that the crystal columns in Rhuidean ARE the Jenn Aiel, transformed, had also occurred to me. It seems a likely explanation for why they disappeared so quickly and completely, without even a remnant to tell the tale.

_{Don't know if I've ever seen the answer for this one: The answer has implications on the ability of the Seanchan to make effective high-power weaves, such as large openings for Traveling.}

_{Re: Seanchan, damane and linking. We know that the a'dam restricts the ability of damane to link with each other. So two sul'dam-damane pairs can not link with each other.}

_{But... if a sul'dam was holding two (or more) damane bracelets and commanded them all to embrace the Source, would that not put the sul'dam at the center of a Circle, able to wield their combined power? Can that be done? Theoretically I think it might, since the sul'dam is herself a channeler. One barrier to this might be that the a'dam prevent a true circle from being formed because, although the damane both are in a link with the sul'dam, they can not directly access each other's power.}

_{Alternatively, can a sul'dam daisy-chain the damane to enhance her strength: sul'dam holds bracelet of damane #1 and wields the Power through damane #1, damane #1 holds bracelet of damane #2 and draws Power from #2, damane #2 holds bracelet of damane #3 and draws Power from #3, and so on...}

_{Has anyone ever answered whether one damane can hold another's bracelet? I'm quite sure that over the centuries some of the sul'dam (the crueler ones, anyway) would have experimented with this.}