Bumble bee's "can't" fly

Years ago, the US military wanted to build an aircraft that could move like the bumble bee. They wanted it to be able to hover in mid-air and then be able to dart quickly in any direction. So, they put a team of top engineers and scientists on the job. They put millions of dollars and months of research to find out how the bumble bee could move that way, so they could design an aircraft to do the same. At the conclusion of the study a stack of papers on the research findings was sent to the US military. The final conclusion of the study was that it is impossible for the bumble bee to be able to fly. Among other reasons, the study said that the bumble bees wings are too small and body too heavy for it to be possible to fly, much less move the way it does. Good thing nobody told the bumble bee. How many examples exist in our world that would have once been thought impossible and are now common? How many things have we all accomplished that we would have once thought impossible? The only limits we have are the one's we place on ourselves.