https://en.wikipedia.org/wiki/Planck%27s_principle https://en.wikipedia.org/wiki/Planck%27s_principle Why do you suppose he said that? Do you really think it'

https://en.wikipedia.org/wiki/Planck%27s_principle https://en.wikipedia.org/wiki/Planck%27s_principle Why do you suppose he said that? Do you really think it's different now? It's not.