Very very true!! Though the strife today tends to parallel the period of that time, it took roughly 50 years for it to reach the boiling point during that period because of the lack of media, today the media accelerates the negativity, the mini ice age of that time compounded the sentiment. I see big parallels in emotions between that period and today and like then religion play's center stage between factions just on a lessor scale today. Also take into account diseases we thought were of the past that plagued that period are making a resurgent in modern times brought on by natural weather changes as it did then. People in that period got complacent from the medieval warm period thinking crop would be plentiful until the ice age hit causing wide spread famine, similar to the problems we are seeing today just in a different way. No, we can't change anything nor worry about it never the less an interesting parallel.