No genetic bottleneck proves no global flood

False. That IS how the terms are used.Whether any change is neutral, deleterious or beneficial is entirely determined by how it affects the relative survival and reproductive ability of the individual in the current ecology. Change the ecology and the relative results may shift.A black mouse in a tan ecology with hungry hawks is deleterious, especially compared to tan mice.A tan mouse in a black ecology with hungry hawks is deleterious, especially compared to black mice.Classic natural selection.

Welcome to the fray CreationPigeon, Ah the old make up ways for organisms to survive by other means canard. I'll let the others handle this. Curiously the problem here, is that the earth is old, very very old, and there are living trees older than 4,300 years.If you care to discuss this I suggest you start at the beginning of Age Correlations and An Old Earth, Version 2 No 1 and read through the first several posts.Of course failure to address the mass of obvious evidence of an old earth means you choose to live in a fantasy world rather than reality ... so do you want to learn about the real evidence of age?Enjoy