[Stone Mill]

I voted "other," in agreement with those who lean toward... well... irrelevant.

The existence of Homo Sapiens Sapiens is a veritable miniscule fraction of a drop in the vast ocean of time. As stated, other life probably would have no idea we're around, or even care, even if our timelines were congruent.

I often think of how aliens are most oft depicted in movies... humanoid, bipedal, single point of consciousness (our active conscious minds can engage only one thing at a time). Who's to say single-cell organisms would not split off and mutate in radically different ways? Life may be something we can't even recognise.