There are facts which are useful to know, and facts which have little to no significance or usefulness.
Here is an example:
Useful fact: Earth can sustain life.
Useful fact: Life can take many forms and goes thru many phases.
Useless fact: The specific type of life that earth sustained in the past or may sustain in the future.
Useful fact: Man is the only known living thing that has a system of communication which uses symbols.
Useful fact: Man is turning the surface of Earth into a place that is becoming less able to sustain life.
Useless fact: What exactly happened to the dinosaurs that may or may not have roamed the earth?
Dinosaurs died for your sins