pertaining all of the great authors

all great authors are before the times or during the times?

 

Sorry, I don't understand the question. Are you perhaps asking if great authors are ahead of their time?

 

the best works of great author are written before the times or during the times?

 

It can be both.

DEAD GREAT WRITER = Graham Greene

ALIVE GREAT WRITER = Salman Rushdie

 

Or...

DEAD GREAT AUTHOR: J.R.R. Tolkien

ALIVE GREAT AUTHOR: G.R.R. Martin

 

predicit the future

I think he is asking the question of whether great authors write in settings before or during current times. The future might be hard to predicit. However, while I believe it is in fact easier to critique past or present events rather than to guess at the future. I believe that when writing anything is possible, therefore one can write about the future and while it is riskier to do at the expense of being factually correct one can do it well and actually in part predicit the future.

 

Just look at Arthur Clarke and Isaac Asimov...

 

This question needs to be genre specific

 

Most, I can think of, were famous in their own lifetime: Dante Alleghieri, Lewis Carol, Charles Dickens, Jules Verne, Mark Twain, Arthur Conan Doyle, HP Lovecraft, Isaac Asimov, etc. Few, I can think of, became famous or more famous after their death: Edgar Allen Poe, Virginia Woolf, JRR Tolkien, etc.