The Window of Opportunity May Be Opened for a Short Time

All civilizations go through an arc where they bolt. They grow up in technologi complexity, but then they don't keep going up te ofe time. And this has happened ivasle with your student of history, with many civilizations in the past. I woul be surprised if out there, in our galaxy and others, that there are a whole bunch of dead, one planet civilizations that prospered. Prospered for a while. Then gradually the civilization collapsed,. for reasons external or internal. Andand that was that.