I do not think so, the failure is because we did not learn from them. Sometimes I think that man does not have reason to think. But the mind really found us to learn a lot of them. If the mind was found to be safe in all the world. If the mind is found, a man can not think how he created his eye and his hand. From behind this creation, can a man create the same with the same design. We have to think carefully until we answer our questions dear brother @tarazkp