Sandman
In article <l8es1a53qm4347f24glcoou31mccp6knf5@4ax.com>, Eric Stevens wrote:

Eric Stevens
It's just that it's not fully reversible in the strict sense that Floyd used it.

nospam
it is, but in a different way.

two different uses of the term.

the problem is that he won't acknowledge there can be other meanings because he's never used the software in question and is talking out his ass.

Eric Stevens
There is no other meaning which can be applied to the term 'fully reversible' as used in physics.

Sandman
Which is irrelevant, since no one in this thread has talked about a reversible process as used in physics.

Eric Stevens
In using those words in that way he was expressing a particular rigorously defined meaning for which there is no substitute.

Sandman
Yes, we know you want to make Floyd appear to be an even bigger moron than he is, but he needs no help.

He was in reference to one process being reversible by the algorithm of another process, which would be a reason to use it instead of a process that can't be reversed by another algorithm. That's what he said and that's what he meant. It has nothing to do with physics or thermodynamics, that's you talking out of your ass. It has everything to do with mathematics.

And it's also born out of ignorance, because such a consideration is only important if you're using ancient tools, which Floyd is. For him, he HAS to take such things into consideration because his tools are so primitive that if he makes a change he can't revert it unless it has a counter-algorithm.

Modern photographers need not take such things into consideration, where using pretty much any tool made in the last decade makes *any* action fully reversible at any point in time.

That's the ignorance we're making fun of here.

Floyd tried to project the shortocmings of his own limited workflow to that of the OP, and gave misdirected "advice" based on what he himself can not do. The OP, of course, wouldn't be limited by Floyds ancient tools and need not that advice.

A proper analogy would be if a poster would ask advice on how to change the color of his car, and Floyd being a grumpy old man that knows nothing about modern technique says that he should paint it with a bursh, but remember that the process isn't reversible. More knowledgable people would chime in and say that changing the color of a car is a fully reversible process these days, with many different techniques depending on your needs.

Floyd, and Eric, would then say "noooo, you can't scrape off the color! it would ruin the car!" and we would hjave to spend some 50+ posts telling you about all the new techniques one could use that ARE fully reversible and you would both deny them until your last breath.