Building Collapses in Rio, page 17

Originally posted by Darkwing01
reply to post by IrishWristwatch

Open systems are studied all the time. I get the impression you think systems must somehow be made closed before a model is acceptable.

Again.

I will caps this because I am doubting your eyesight.

THERE ARE TWO THINGS NOT ONE.

ON THE ONE HAND YOU HAVE THE MODEL.

ON THE OTHER YOU HAVE THE THING MODELED.

Oh Christ, that's what I told YOU when you conflated the two - only yesterday. This isn't the first time you've done a 180 and subsequently tried to use my own arguments back at me as if I never said them, and as if that's been your position all along.

Since the words on both sides are still there for all to see, I consider this addressed a priori.

THE PROBLEM IS NOT WITH MODELLING OPEN SYSTEMS.

THE PROBLEM IS WITH USING AN OPEN MODEL TO MODEL THE OPEN SYSTEM.

It would be a problem if anyone were doing it, but I don't see any of that around here. Hello, Darkwing, please meet windmill...

No, Irish. The system is not closed, there is no such thing in reality. But you cannot do science by invoking god when your equations run into trouble.

WTF are you talking about? Number one, the equations HAVEN'T run into any trouble, number two, please show me where god appears in the equations. Very frothy, you are, at this point. So this is what it looks like when you're going down?

YOUR MODEL

not

THE THING YOU ARE MODELING

Yeah, duh. For your edification, here is what I said to you yesterday:

'System' and 'model' are not synonymous in this context. A model may be of an open system or a closed system, and logical closure of the model is an entirely different thing than open or closed systems.

There really is no such thing as a true isolated system, except perhaps the universe as a whole, although many systems fairly well approximate a closed system. When open systems are studied, boundary conditions are defined which account for the matter and energy exchange across the boundaries of the system. This provides logical closure for the model, though the system remains open.

and

NO NO NO! See above. Model and system are not the same. The model models the system, the sytem is modeled by the model.

How utterly tiresome. You repeat my statements back to me in big font as if I were sooooper stoooopid and didn't say the same thing to you yesterday - because YOU were the one harboring the stooooopid confusion.

The rest of your post, incredibly, devolves from there, and I shan't be pissing any time away on it. I'll check the others to see if there's anything worth responding to.

edit on 5-2-2012 by IrishWristwatch because: (no reason given)