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Politics : Foreign Affairs Discussion Group -- Ignore unavailable to you. Want to Upgrade?

To: Maurice Winn who wrote (182253)	2/21/2006 5:00:27 PM
From: neolib	Read Replies (1) \| Respond to of 281500

Slow to prepare, quick to occur. Like straws on a camel's back. I'm not buying this in the least. You are making an argument that involves a cascade of dynamic systems. Lets call it two systems, the first is your subduction thingy, and the next is the weather thingy. The first, by your own admission has very long time constants, i.e. it is a very low frequency system. The following cascaded box has much higher (relatively speaking) frequency dynamics. When you have such a cascade in a linear system (which this is) you never see the dynamics of the second system. The reason is that the second system never sees an input in the frequency range which can excite its dynamics, i.e. its inputs always look quasi DC. Consequently all you can ever see of its dynamics are the low frequency or DC level gains (which admittedly might be large gains, but so what). So if your driving force is plate tectonics, you will not see a rapid weather change like the snowball earth. You might well see such a thing from solar dynamics, or volcanism or something with time constants on that order, but not plate tectonics.