Just SOME of the more serious problems include:
• A handful of people somehow used stone-age tools to build a large wooden ship in which to cram potentially MILLIONS of animals, along with their many specific dietary and other requirements for an entire YEAR. That much cargo would have sunk the ship immediately. Not only that, but even with today’s advanced tools and engineering it would be impossible to build such a large wooden ship without it immediately breaking apart in rough flood waters.
• Most animals would have had to travel IMMENSE distances to get to the ark, including many like termites, snails, sloths, koalas and penguins that have limited mobility, or that can only tolerate a narrow range of environmental conditions, or that have highly specialized diets.
• Supposedly there was a single, 18” window in the ark, which would have been entirely inadequate to provide ventilation, resulting in the quick suffocation of all the animals.
• ALL the many diseases and parasites specific to each species would have had to be carried by at least one of each animal. Tens of thousands of diseases affect humans alone. I wonder which of Noah’s family members carried all the venereal diseases exclusive to humans....
• For nearly all existing fossils to have been created by the flood, right before the rain started falling there had to have been an average of over 2,000 vertebrate species—ranging in size from tiny shrews to massive dinosaurs—for EVERY ACRE of land on the planet. That’s not even counting the more than 90% of species that are invertebrates.
• If the rain came from a vapor canopy, it would have had to be superheated. If it came from ice falling from orbit, it would have become superheated upon entering the atmosphere. Add to that the water coming from the “fountains of the deep,” as the Bible describes it, which from even just a mile down would be boiling hot, and there’s easily enough heat to have vaporized the oceans and destroyed virtually all life on Earth.
• The seismic activity pulling the continents apart, forcing up mountain ranges, and causing nearly all the world’s volcanoes to erupt at the same time would have poisoned the atmosphere, generated enough heat to vaporize the oceans, and once again destroyed virtually all life on Earth.