I actually have no problem with the "theory" of a flow chart of life choices. For I certainly do NOT believe that there is a Blue print upon which we are destined to tread and, should we deviate from that, we're cactus.
So I'm with you on that one.
However, what I would like to know (genuine question) is, given this theory, how do you explain what you "feel" now. In other words, whilst there may be other permutations of yourself, there does seem to be one entity of which you are conscious all of the time and which seems to travel in a continium.
Hypothetically, does that consciousness not have a higher importance? Or is that relative?