Time to think about ice ages again

sometimes i sail without a rudder on these things and start like a dagger stuck into a tenth grade history class map of the world. somehow the dagger always ends up in Kazakstan or in the South Pacific somewhere, both places being pretty much attractors for random stabs at our topography, space junk hitting the planet, causing another adaptive radiation of foraminifera or inciting mammals to riot and finally start laying eggs again. my little simulcrum ran a great many errands with me today and met the supreme challenge of sharing her ducks head on. megapode birds lay their eggs in piles of warm sand or sometimes in heaps of rotting manure, the challenge being to keep the decomposition going long enough to sprout baby birdlets with no nest sitting and presumably with more time to devote to laying more eggs and gathering more manure and I guess what I would like to say right here is that things are normal again and I can think about ice ages again. ice ages. so strange to be in one of these eras, a mass extinction era and an ice age era together, but all planets have phases and I suppose intellect and technology together are an invitation to those very practices that precipitate mass extinction regardless of the mindset that started it. technologies in and of themselves benefit environmental cataclysm because even the bone tipped clovis points were a superweapon in their time and many a mighty short faced bear must have faced them and feard its own obsolescence. too bad they did not live long enough to shoot with muskets, like the first grizzly encontered by Europeans, keen to test their killing devices against the super beast of the new continent. the killing of a grizzly or an elephant or a sperm whale is not a victory over nature for that matter because the biosphere has been looking for a path to the next extinction for quite some time now, setting it up with this peculiar orbit and snow covered albedo, in cycles, and now the mighty mosquito and ragweed will move out of their hidden strongholds and pave the way for the dominion of rats and beetles, horseweed and thistle. what mighty beasts will come in the future, after we are gone, in what way will we have brought them into being?