Where do new ideas come from?

I believe that new ideas can broom you brains and experiences you had in your past life. This might happen anywhere. New ideas come through thinking and brainstorming. For example, earlier people used to think that the world was flat and you might fall off from the edges. Later, when people came up with the idea or hypothesis that the world cound indeed be round, the idea would have been dismissed as a stupid idea. Many peole would have commented rudely, like "What an idiot" etc.. However, the idea turned out to be a reality as figured out and established by Christopher Columbus, and people did start believing in the same. Not all ideas can be flawless. There are many ideas which have a flaw and others which do not have a flaw. Thus, it is experiences and facts that establish or turn the idea to reality. We should not just dismiss the idea for the reason that it sounds strange. We should explore and try to prove it right or wrong with a scientific approach.