"So by December 1900 Planck had changed everything in physics and chemistry. The only problem was he didn’t realize it. [...] Although he didn’t realize it, Planck had removed a foundation stone from the edifice of classical physics; it would take another twenty-five years for the entire structure to collapse. However, the immediate reaction was ... nothing. For the next five years neither Planck nor any of the great physicists of the era took up the meaning and extension of Planck’s ideas."