I donot know how old you guys are. In my life, I saw many wise people who did not succeed, while some average or stupid people can be successful. Human is very small, no matter how you work hard, you can not do anything if you have a really bad luck. Of course, a fair share of luck is enough. But just like wealth, 20% of people have 80% of wealth in the world, I donot know luck is shared evenly. Especially for a key project for you, if you have a bad luck in your key step, you really cannot make it.