I suggest you the book "Order of time" by Carlo Rovelli. One think I learned by the book is the locality of time. For example imagine one day people living on m

I suggest you the book "Order of time" by Carlo Rovelli. One think I learned by the book is the locality of time. For example imagine one day people living on mars and you wonder what that people doing in this moment. Well is a wrong question. There is no such thing "this moment" in two far placeces