Complex sentence: Therefore, the usefulness of the Drake equation is not in the solving, but rather in the contemplation of all the various concepts which scientists must incorporate when considering the question of life elsewhere, and gives the question of life elsewhere a basis for scientific analysis.
Split into simpler sentences: Therefore, the usefulness of the Drake equation is not in the solving, but rather in the contemplation. The equation is quite useful for its intended application, which is to summarize all the various concepts which scientists must contemplate when considering the question of life elsewhere, and gives the question of life elsewhere a basis for scientific analysis.