What happen when I have to much time on my hands

OK, was thinking about some weird stuff like living in a world that had been or has ended itself before with energy from the ether so they figure that if you create energy from the sun the wind and waves you are not taking it from the earth but adding it to the planet which, we seem not to know that no matter how we twist this world around it will be here billions of years after we are long gone so maybe we should use what we have and work with the planet and maybe it will let us hang on for a few more thousand years.