In the philosophy of science, a protoscience is a new science trying to establish its [1] Protoscience is distinguished from pseudoscience by its standard practices of good science, such as a willingness to be disproven by new evidence, or to be replaced by a more predictive [citation needed] Compare fringe science, which is considered highly speculative or even strongly [2] Some protosciences go on to become an accepted part of mainstream [3]All sciences would have qualified as protosciences before the Age of Enlightenment, since the scientific method still hadn't been developed, and there was no structured way to prove A standard example is alchemy, which from the 18th century became chemistry, or pre-modern astrology which from the 17th century became astronomy 未成熟的学科 学科的前身