The difference between a BUSINESSMAN and an ENTREPRENEUR is that a businessman does business on what is POSSIBLE, while an entrepreneur on what is IMPOSSIBLE.
If you WAIT till you can SEE the other end of the tunnel, you'll have to wait FOREVER. There would be no room for CREATIVITY if all the ANSWERS are known. Those who make 80% of the market PROFIT are those who specialize in doing the IMPOSSIBLE. Go grab your share.