There's reason to believe there were advanced civilizations on this planet long ago who either by fault of their own or because of an act of God, no longer exist, most traces forever lost.
Did they have compassion for their fellow man? Were they peaceful, forgiving, loving or were they absorbed with the desire for material objects and lust for dominion over their environment?
It would be really nice to have that blueprint to follow but, the best we have is the written word of God and our faith to lead us forward.
Much agree.
Evidently the advanced civilization in the Indus valley region of India a very long time ago had atomic weapons as well as UFO type flying craft.
“Will things be returned to an agrarian era or continue on with technology after Armageddon?”
The war of the mountain of God is IT. The End. This age becomes the age to come. New heavens, new earth.