"Where once there were sea beds, there are now jagged mountains, and there will sometime be fields and then seas again." true, except next time around the mountains will have sedimentary metamorphic rock faces with pontiac bumpers embeded in them , anthrolithic assemblies?, there are many things made from alloys that are essentialy impervious to almost all chemical attack and other objects and piles so massive as to guarantee some things will retain a clear signature of bieng manufactured it is strange to think that things here now, will continue to exist into the far future