The New General Catalogue of Nebulae and Clusters of Stars (NGC) is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies, star clusters, emission nebulae and absorption nebulae. Essentially the NGC is a collection of all things we have yet to explore.
That is where the idea of NGC comes from. The freedom to explore any and all aspects of human endeavor.