Well, theories could be proposed for how it COULD float, which is basically all Answers in Genesis did, theorize on ways a design could work given the minimal information we know.
AiG didn't theorize; they hypothesized. Theories require testing.
Why is it that creationists always come up with these (outlandish) ideas on how it "could" have happened but they never do any experiments to test their hypotheses? Why do they spend millions on propaganda and not one cent on science?
Show me anywhere in the blueprint that that there would be one place that the ark would not be 300 cubits long.
Show me anywhere in the blueprint that there would be any place where the ark would not be 50 cubits wide.
Show me anywhere in the bluepring that there would be any place where the ark would not be 30 cubits high.
It isn't a blueprint. It's a vague description. The dimensions given - length, width and height - could apply to an ellipsoid just as well as a box.
How tall are these waves you are talking about and what caused them?
They don't have to be very high. A few feet would be enough to cause a fairly large differential in bouyancy from end to end of the ark. That would produce stresses in the structure causing the wood to flex and the joints to work loose.
There are ocean going barges 459 feet long today traversing the oceans and surviving.