Relevant Scott Alexander blogposts: Is Science Slowing Down? (miscellaneous data and discussion) and The Low-Hanging Fruit Argument (suggesting that a low-hanging fruit model can largely explain science getting harder, and giving empirical cruxes for this model).
Relevant Scott Alexander blogposts: Is Science Slowing Down? (miscellaneous data and discussion) and The Low-Hanging Fruit Argument (suggesting that a low-hanging fruit model can largely explain science getting harder, and giving empirical cruxes for this model).