Everything organic or inorganic degrades. It's inevitable. Well, maybe a package of Twinkies and a couple of cockroaches will shelf-date into the future. But this planet was originally a slick, tiger-eye glass marble and then all these panspermia organic things started crapping and trashing and stuff. Eventually over billions of years that shiny marble is now covered with mile thick layers of crap, detritus, MANURE. Dead stuff, rotting stuff, excreted stuff, fossilized and petrified stuff. We beings at the supposed top of the food chain tend to forget stuff like that. Memory lapse is in our genetic nature. Where else is all this decaying baggage gonna go anyway? So it piles up in more and more tectonic plate strata of putrified complexity and Voila! A planet is born, genesis. Yeah, man wasn't exactly made from a lump of clay, probably more like a loaf of dinosaur turd. Then someone invented lip stick.
