What do you mean by people ? Certainly if you approached one of the eras thousands of scholars, after an obvious initial shock, they'd be more than anxious to absorb every piece of information you could share with them.

Sorry, but your submission has been removed because we don't allow hypothetical questions. If possible, please feel free to rephrase the question so that it does not call for such speculation, and resubmit Otherwise, this sort of thing is better suited for /r/HistoryWhatIf.