The reason I ask about the how long flight took to evolve was because it was argued that evolution does not take thousands of years, and that's not true. I've

The reason I ask about the how long flight took to evolve was because it was argued that evolution does not take thousands of years, and that's not true. I've read the books that's why I see the paradox. I'm not playing games, if there are factual answers I would not be asking questions here. If an animal could survive for thousands of years without hibernating there would be no reason for it. It could even prove disastrous making the animal easy prey. Moreover the dynamics of traveling underwater and flying in air are different. Features that are great for flight are not so great for traversing underwater for an extended period of time. There are animals that can glide today, but even there ability to glide has to evolve, and during that evolutionary process an evolving glider is a disadvantage. It is not neutral, it slows the animal down. If you are going to debate with conviction your answer should not be "I don't really know". Yes, biology is far finished so let's not pretend like it is.