Religion

Most interpretations of the Biblical story of Noah and the Flood assume that the story is either entirely literal or entirely figurative (and therefore fictional). This assumption is unwarranted. Many Scripture passages contain both literal and figurative elements. For example, Jesus tells the disciples that Lazarus is sleeping — He is using a figure. Then He explains that Lazarus is dead — now He is speaking literally. Even the expression Love your neighbor contains both literal and figurative elements. The term love is literal. The term neighbor is a figure, meaning that we should treat even persons who are not our neighbors as if they were.
So we can hold that there was literally a Noah and a great Flood and an Ark with animals. But we can also hold that the story includes certain figurative elements: that the Flood covered all the earth, that the Ark contained all animals, that all humans were killed other than in the Ark, etc.
Any argument that proves the Flood could not have covered the whole earth, or that all human persons could not have been killed at that time, or that all animals could not have fit on the Ark, only proves that those elements are figurative. It does prove that the entire story is fiction.