How is the modern era similar to the classical era

It's similar in the sense that the predominant type of social organization around the world is democracy. Many countries around the world are trying to implement democracy as a governmental model or already have done so. This was also found in the ancient Greek society. That is one way how it was similar to today. Another thing that is the same is that people still tend to spend their time in the same way hey did before in terms of talking to each other, hanging out, etc. Although this has changed a lot since the classic age. 

Athe rate increases as income increases