Theory vs. Practice

Practice separates workable ideas from the rest.

You can call it theory vs. practice, talk vs. action, science vs. technology, or whatever you want, the essence is the same. You truly know something after putting it into practice. Until the rubber meets the road, the vehicle might just as well be an idea in your head.

Why should we care?

Grand challenges often bring enabling technologies in their wake, regardless of the degree of success in their stated objectives. Many of the technologies which we currently use even without knowing came out of NASA’s years of work on the space program, even if common person has very little to do with space exploration.