Sometimes, the idea is so ludicrous, that dismissing out of hand is the only sane approach.
Open-mindedness does not require reconsidering arguments already refuted and rejected. We've seen these arguments before.
Is there a distinct earth event that I can pick up as a supernatural cause without reading the bible?
You've asked this of the believers a few times and received no explicit answers. Isn't that answer enough?
What would’ve happened, is “valleys” formed -
Psalms 104; the land surface fell, because the rising springs would have left a vacuum
And what could possibly suck these waters up to the surface in the face of the vacuum that would ensue? And if the earth had collapsed thereafter removing the space the water had occupied, how could it return underground?
using science to disprove God holds no validity
There is no need to disprove any gods. If the claims cannot be adequately supported, they can be rejected on that basis alone.
all I really have to do? Is prove the story is impossible
Or less. You are justified in rejecting insufficiently supported claims without other cause.
I can think of at least 20 points of failure, any one of which destroys the credibility of the tale ... in fact, I wrote those down in a little list... wanna see?
I copied this from a previous post of yours on another site:
NOAH: Any ONE of the following proves NOAH'S Ark Story myth:
From Bob of Quantum Faith
[1] A wooden boat made to bible specifications would have broken in half with the first three foot wave.
[2] A wooden boat that size without a rudder would founder and sink with the first set of five foot waves. The largest ships made of wood, by teams of shipbuilders, using better technology have been no longer than 300 feet. The Santa Maria was only 75 feet long. Genesis 6:15 puts the ark at 450 feet. It would be impossible for a ship this size to be made seaworthy, especially in light of the technology and the building team.
[3] There was only one hatch - in the top. How did they muck out the manure of five million species of animals?
[4] Once the salt water receded, where was the vegetation necessary for life? What did the carnivores eat until the planet was repopulated? How did the animals get back to their habitats without food or fresh water?
[5] What did the meat-eaters eat? Every time Noah fed the lions or the tigers, *poof* - another species of animal goes extinct.
[6] There is not enough water on the earth, to flood all the mountains, as specified in the Bible.
[7] If it did rain enough water [magic?] to cover all the mountains in only forty days, the rainfall would be as dense as actual water - like being in a waterfall, which would have destroyed Noah's wooden boat in minutes.
[8] Noah did not bring trees on board. Trees die when drowned. Once Noah opened his boat, he would have seen nothing but deadwood and mud. All the herbivores would starve within days.
[9] If the human race descended from Noah and his sons, we would see a genetic bottleneck in the human genome roughly 4,000 years back. Do we see this? No.
[10] The population of the world is too high if all humanity came from only four breeding pairs a few thousand years ago.
[11] A 450ft boat could not hold two or seven or whatever of every species. The number and variation of species of insects alone-- would have filled up the ark, hundreds of times over.
[12] Why are there ancient civilizations with continuous histories dating back to long before the generation of Noah? China and the Egyptians have such continuous histories, with no world sterilizing flood in them.
[13] Cave paintings in Europe are drawn in Charcoal. Immersion in water would have erased them. These are 15,000 years and older.
[14] If there were a global flood, you would see a universal, world-wide layer of compressed mud dating the that time. This is not the case.
[15] Putting enough fresh [rain] water into the salt oceans to cover the mountains, would dilute it to dangerous levels killing all marine life
[16] The number and variation of species of insects alone would have filled up the ark hundreds of times over. The number and variation of bird species including unique species from all the islands, would have filled up the ark multiple times over.
[17] How did animals get from Australia to the ark, or from the ark back to Australia? The animals living there now go back to pre-historic times, and most are unique to that continent. Koalas require special diets. How did Mr and Mrs Koala carry their food with them all the way from Australia?
Please make the bacteria evolve into a dog and I'll be happy to change my mind about evolution
Straw man. The theory makes no claim that anybody can do that, and failing to turn E. coli into E. collie is not an argument against the theory.
However, the creationists claim that their god can actually do that instantaneously. Please have your god change a bacteria into a dog (or vice versa) and I'll be happy to change my mind about creationism.