I think it's hard to judge, because we have so many more tools and resources today which amplify creative output.
It might true that we are have more creative output today than we did 100 years ago, while also being true that social media stifles us from reaching our full creative potential.
It might true that we are have more creative output today than we did 100 years ago, while also being true that social media stifles us from reaching our full creative potential.