Nothing

Every great idea starts from almost nothing. Just a glimmer of an idea is what every big thing starts as. If you go downtown and look at a 60 story building , if it is hard to conceive that someone once had this vague idea and it turned into a a huge building with hundreds of people working there.

You never know when the idea you have might be what is needed at that moment to start on the journey of something really substantial affecting hundreds or maybe thousands of people.

Blogs are the essence of that. You are just writing your ideas down and soon many people are reading it and are hopefully helped by it. They are the embodiment of glimmers of the future.

Even more important than that is to act more passion. People that do really big things , give their all to it. They jump in and swim and cut all the safety nets away and go to the deep water. There they make it or they don't. If they don't make it they try again with the same abandon. The lessons learned by failing first are invaluable.

Every great person started will many failures. They used all they learned to refine the idea and make it better.

You never try once and then let it go. But sadly most people try once or twice and say it was not meant to be.