And then, once they achieve fame, people will name them as overnight success. Big ideas, as other suggested, takes time and are often built through trials and

And then, once they achieve fame, people will name them as overnight success. Big ideas, as other suggested, takes time and are often built through trials and errors. Also, the ESA has said that their model is sound and that all the experiment needed to validate the idea were successfully completed[1]. http://en.wikipedia.org/wiki/SABRE_%28rocket_engine%29 http://en.wikipedia.org/wiki/SABRE_%28rocket_engine%29