But just like the famous Drake equation, all the terms in your equation are unknown. It could be zero species or nearly infinite that meet this criteria, and anywhere in between.
We have zero clue what percent of civilizations that invent computers go extinct, or their travel time/methods, or their ability to communicate at a distance (certain things related to ayylmaos appear superluminal). All we know is that life is possible and our history is full of unexplained “visitations”
Criticism related to the Drake equation focuses not on the equation itself, but on the fact that the estimated values for several of its factors are highly conjectural, the combined multiplicative effect being that the uncertainty associated with any derived value is so large that the equation cannot be used to draw firm conclusions.
It is more properly thought of as an approximation than as a serious attempt to determine a precise number.
But just like the famous Drake equation, all the terms in your equation are unknown. It could be zero species or nearly infinite that meet this criteria, and anywhere in between.
We have zero clue what percent of civilizations that invent computers go extinct, or their travel time/methods, or their ability to communicate at a distance (certain things related to ayylmaos appear superluminal). All we know is that life is possible and our history is full of unexplained “visitations”
From the wiki page for the Drake Equation:
https://en.wikipedia.org/wiki/Drake_equation