  00-00-0000, 00:00 AM  Because I am a nerd, I kept looking into this, and I found this quote:  Someone who wasn't Aiel could wander through those spires forever and never see a thing except the spires. He or she might think it was a monument, or maybe a work of art.  So that at least suggests the pillars are capable of recognising someone based on genes/lineage. If the genetic memory thing from TEOTW is still in play then this strengthens my theory a little, I think.  