Of the (here-incarnate) people who you know in this life, how many of them are people you've encountered in a past life?
Of the people who played memorable or significant roles in the past lives you've explored, how many of them have you met again here?
(Clarification: In the second question, "Met again here" refers only to people incarnate here on Earth. Not spirits or folks visited via astral travel. -B)
Statistics, of course, prove nothing, and this sort of non-rigorous statistic even less so; but I haven't talked to practically anyone about these sorts of demographics, and I'm curious to see even what a spot poll suggests. Discussion of the poll answers might prove equally interesting.
(Please refrain from talk in the comments questioning the validity of the whole past-life thing; it's a fair cop, but not what I'm looking for here. If you think such a discussion is necessary, start one in your own journal or forum and link to it in a comment. This post is a Woo-Woo Safety Zone, albeit an entirely public one.)