Flood accounts do not equate to a worldwide deluge where even the mountains are submerged and an ark is needed to save a selection of people and animals in order to repopulate the earth......It did not happen, the story is impossible.
The story was probably embellished from a localized flood event/hero legend what a family saved their themselves and their livestock under difficult conditions, to the amazement of the surrounding tribes.
The Flood did happen. The story is possible because it did happen. Because you don't believe it and maybe even read others don't believe it makes no never mind to the facts.
"Only Christ is the fullness of God's revelation." Everyday Hunter
