I would suggest you study ancient civilizations and the people who lived in those time periods...
You seem to think those people were primitive and without intelligence...
I certainly believe they could conceptually understand an IPad...maybe not the technology behind them, but that it was possible...
Ever hear of the Baghdad battery ? Look it up...
You assume I know nothing about ancient civilizations...interesting assumption. What is fascinating is that we here now will all be considered dumb as a box of rocks 2000 years from now.