It is difficult to say for sure what Karl Marx would think of our world today, since he never experienced it. However, it is likely that his beliefs in communism would remain, as the core principles of communism are still relevant today. Marx believed that a society should be based on shared ownership of resources and that all people should have an equal say in how the society is run. Although our world today is far from being a communist one, these core principles of communism still apply, and Marx would likely continue to advocate for them.