if something formed from something else over a very long period of time then that something else existed a very long time ago
geological_formation is not tangible_thing. hijacking is unnatural_thing. people has hard_time_explaining_existence earth is thing. change is when_one_thing_becomes_another_thing. lumpy_thing is not tangible_thing. naturally_occurring_tangible_substance is not tangible_thing. trying_to_steal_information is unnatural_thing. change is not when_one_thing_becomes_another_thing. geological_formation is tangible_thing.