@Frank Apisa,
Hmm. Again, the solipsist's position isn't one that I hold, but I'll try to represent it as best I can.
I don't think that that position does actually say that reality "is dependent on" personal experience. I don't see any ontological priority assigned in the solipsist's position, since they claim that subjective experience is all that there is.
And as to whether anything existed before humans, that's a bit off-target, I think. For example, I have the memory of experiences of being taught about the history of the universe, but does that memory of those experiences entail that those experiences are true? Similarly, the first-person perspective entails second- and third-person perspectives, but does that necessarily entail anything at all about anything outside the realm of subjectivity? The brain generates a sense of certainty sometimes, but sometimes that sense of certainty turns out to be wrong. The brain seems to generate an objective perspective about the world of experience, but I'm not sure how that is any more reliable than the sense of certainty. The sense of objectivity is a subjective sense, by definition, but claiming that it accurately describes that which is beyond experience is taking an unwise and unnecessary leap, it seems.