Entrepreneurial ideas project a potential future, an option that could be turned into reality. But in order for that to happen, only execution and learning can tell whether the option can also be a reality.  

Most innovations are re-combinations: applying a principle or a concept from one industry, market or technology, and applying to another.

In order to get good ideas, entrepreneurs need to spend time by themselves. To get good ideas, being focused without being disturbed is the key to success.

The origin of many entrepreneurial ideas is experience: deeply knowing an industry, customer problems, supplier problems helps you to identify unaddressed needs, or to have seen options tried and failed before.