Finslly, a reply button shows up where it ought to be. You&#x27;re showing a little too much of your hand, here. It turns out you&#x27;re comparing quintessentially non-deterministic models based on _partial_ (you also needed to know that bit) differential equations to the little deterministic thing you&#x27;re working up in your mom&#x27;s basement. In the latter, if you&#x27;re not lazy and provide some _truly_ random element, you get to control how much chaos it causes. That&#x27;s not the case in the climate model attempts. Till now, I haven&#x27;t told you anything about the DE (not PDE) based modeling I do professionally on systems with several million components. Because it&#x27;s hard to talk to a bloviator without stopping to point out the stupidities. In the vastly more well-controlled DE environment, one wrong input out of several thousand can still send the system into an invalid state. In sum: you&#x27;d be well advised not to pretend superior knowledge without providing a shred of evidence in favor, and much contrary.