For every success story there are 8 failures that nobody ever hears about. But, the spirit of the venture capitalist is that the more times you come up to bat the more hits you will get. There is no profit without risk.
高科技產品的研究、開發需要多次實驗才能成功，而且能否順利生產、產品生命周期有多長、顧客能不能接受等，都是未知數。