Noah walked with God. (Gen. 6:9).
God spoke to Noah. (6:13, 17)
God gave Noah inside information (6:14); and detailed instructions on how to
build the ark (6:15-16).
God pledged covenant with Noah (6:18), something he had only done once before
in human history, in the Garden.
God ordered Noah to pack food (6:21). Presumably, God would not have Noah do
something that wouldn't work. If naturalism militates against the food
storage, the only answer is another example of intervention by God!
God brought the animals to Noah (Noah didn't go out and fetch them). Another
miracle. (7:9, 15)
And GOD shut NOAH in (7:16). This is an important fact. God was the one
sustaining the ark!
All of the above is ample evidence of God's miraculous involvement with Noah,
the ark, and the Flood. So why waste time trying to calculate urine samples
and dinner menus? God knew what he was doing when he got involved and stayed
involved. He usually does.
Jim