Originally posted by Demonic Phoenix
And how do you know he had an existence prior to his appearance in Naruto's consciousness?
Easy to answer that: because he said he was aware of events that occurred well before his appearance in Naruto's mind in addition to saying something like "I saw it from inside of here."
Next question, please:
A better question for you is: how do you know that he saw ONLY events after Jiraiya's death?
Which is more logical: there was an almost seemingly random event that allowed Minato to start seeing things from his son's perspective (and this would have occurred BEFORE he made his appearance to Naruto because he spoke of not one but two events that occurred before their meeting in Naruto's mind), but not before then; or the sealing of his chakra inside of Naruto's mind/soul allows him to see events in an intangible form similar to the 9-tails' vision.
My logic is very solid with no contradiction: both the Kyuubi's chakra and Minato's chakra were sealed in Naruto. Both the Kyuubi and Minato could make observations from Naruto's perspective (they know what he knows). Both the Kyuubi and Minato cited specific examples from Naruto's life and directly or indirectly stated that they could "see it" form inside of his mind/soul.
My Conclusion: they can see Naruto Masturbate, piss, shit, grope Tsunade, etc. Minato always had the option to observe things from inside of Naruto's mind but his lack of chakra prevented him from forming some sort of "observable" figure because that would burn up too much chakra.
Your conclusion: Minato, arbitrarily, started seeing events from Naruto's mind. No point was cited. No reason was cited. It was only as far back as Jiraiya's death and nothing else. Despite this being unsupportable and it actually contradicts the logic of other's chakra being sealed inside of him, this is fact and cannot be argued with because the logic is solid.
Which one is more logical and has more evidence for it's support.