I think if you have an idea whose execution is complex, its much harder for someone else to grasp, let alone copy. And that's a challenge for the entrepreneur,

I think if you have an idea whose execution is complex, its much harder for someone else to grasp, let alone copy. And that's a challenge for the entrepreneur, but you are more likely to build something defensible. Now just explain in 5 words why I can't live without it and you got it.