I skimmed through another closed thread that was supposed to address why God chooses to be invisible but it was mostly off topic with predictable subjects. I'm starting this new thread on the subject as I'll be addressing it differently. My science oriented perspective does not subscribe to Bible inerrancy and infallibility, multi-universes, god is on another plain of existence, time travel, precognition, omnipotence, omniscience, omnipresence, omnibenevolence, miracles like magic. Note, will resist posts going off topic.
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That no one in modern times has been able to provide certain physical proof of god or even spiritual existences looking back through human history, is the strongest scientific evidence for atheistic resistance to belief in any god. We cannot obviously sense God. The Bible itself states God is invisible and that no one (on Earth) has seen his true essence except the Son. God does not with certainty sensually communicate with us although many believers will claim they can tell in some vague way that God is there guiding their thoughts. But if he exists, God could and may at least on extraordinary occasions do so under conditions that he has carefully evaluated as to be un-provable. Such might be described as un-manifested. It may also be that God as spirit is not visible by our organic visual system. The following Bible verses are examples showing God’s attitude in being secretive, hidden, invisible, un-manifested and how that was even understood at Jesus’s time. As to why, I'll speculate about that later:
Matthew 11:25-27 (NIV)
At that time Jesus said, “I praise you, Father, Lord of heaven and earth, because you have hidden these things from the wise and learned, and revealed them to little children. Yes, Father, for this is what you were pleased to do.“
Colossians 1:15 (NASB)
He is the image of the invisible God, the firstborn of all creation.
Mathew 12:38>39 (NASB)
Then some of the scribes and Pharisees said to Him, “Teacher, we want to see a sign from You.”
But He answered and said to them, “An evil and adulterous generation craves for a sign; and yet no sign will be given to it but the sign of Jonah the prophet;
Jhn 5:37 (NASB)
“And the Father who sent Me, He has testified of Me. You have neither heard His voice at any time nor seen His form