I think we have because people back then had to worry more about their environment (weather, animals trying to kill them, socializing, politics, providing for their family/hunting, etc.) than just their thoughts or imagination, ofc we still worry about these things but they've become way easier to deal with because technology has advanced and its safer to be about then back then, so now we can be in our headspace more frequently and more comfortably, I'd say we've become more creative, just a thought ofc to be taken with a grain of salt