The world is full of wonderful things, with countless new discoveries paving the way to whole new scientific fields. A hundred years ago, fields like genetics, quantum physics and computer sciences were either almost unheard of, or simply did not exist yet. Go back a hundred years more, and more scientific disciplines we know today did not exist yet. May or may not be a fictional extension of an already existing Real Life discipline. Compare/Contrast Fantastic Science, which is when the new "science" studies/explains the supernatural. Not to be confused with Fiction Science.