Great article Erin!
The article brings up an interesting question that I would like to see more articles about. How would you be able to easily discern if you have some of the abilities you've outlined here? Some of them like using a pendulum are relatively straightforward and anyone can gain proficiency in using them. Others like clairvoyance are more difficult to distinguish.
Maybe if you're asking the question of if you have a specific ability, you don't have it.
Any suggestions on this are always welcome.