gnostic
The Lost One
The claim of Genesis Flood being a local flood, would make it pointless for a number of reasons.I believe I fail to see your logic if there is any. Why can't the flood be local? There is no mention of extinction. There is no mention of other survivors but that could simply be because it wasn't important enough to mention. As for a boat, I believe I have seen people traverse through their neighborhoods in boats in floods in this country and it didn't rain for forty days to produce those minor floods.
One of them being, as SZ pointed out there would be no need to take so many animals to the ark, because areas not affected by the flood, animals and humans would survive, since the flood would not reach them, if it is localised.
Two, why build an Ark of that size?
Seriously, if the Flood was indeed a local flood, noah being a prophet, who can talk directly with God, had a hundred years (Genesis 6) warning about when the Flood would hit them. If he had that many years to prepare for the coming flood. With a hundred years, it would have been more easier for Noah’s family simply to walk away from the flood-affected region to a safer region than to built such a sizeable vessel.
In a single day (8 hours of walking), a healthy person can walk 20 miles. In a year, he could covered as much as 7300 miles. In a decade, he can walk as much 70,000 miles. Can you imagine if he walked 20 miles per day, for one hundred years?
Alexander the Great travelled from Macedon to Indus River (India and Pakistan), between 332 to 326 BCE, with a army, making many stops along the way to Indus (Egypt, Babylon, Susa, etc), before returning to Babylon, where he died in 323 BCE.
The ark is pointless, especially when Noah has a hundred years to prepare, and if the Flood wasn’t a global flood.