I choose to believe that the omni-God exists.
And there is the major difference between the faith-based thinker and the reason and evidence based thinker. With faith, one can choose to believe whatever he wishes, or its polar opposite. How can that possibly be a path to truth? It's guessing.
The reason and evidence based thinker doesn't choose what he will believe. He evaluates the existing evidence and tries to extract general truths from them, whatever those might turn out to be. If one consults the universe for evidence, he finds none in support of a tri-omni god or creator. Believing that such a thing exists anyway is unjustified. And so, having no reason to believe, I don't.
without omniscience to evaluate every possible effect and ramification of those proposals, we cannot say for sure if they are improvements or not.
Disagree. Perhaps you cannot say, but most of the rest of us can. I don't need omniscience to say that world without wheels was made better by their invention.
Only those things which are not a part of the universe that exists can be proposed as possible improvements to it
Not so. We can recombine existing elements within the universe and make improvements.
We know that this is not the best-of-all-possible-worlds because we can make it better, and we don't need to be omniscient to know that we have done so. The best-of-all-possible-worlds cannot be made better.
Yes, I kind of remember correcting you on it before. I guess it didn't sink in then, either.
Correcting me? Sink in?
I rejected your faith-based position then as I do now. You have no persuasive power when your argument begins with an unshared, faith-based premise. You'll have to come up with evidence for your beliefs for them to be believed by those that require evidence for belief. People aren't interested in what others believe as much as what they know and can demonstrate.
Yes, all beliefs are taken on faith.
Perhaps by you, but others turn to other methods for determining what is true about the world.
Some beliefs are based in reason and experience, and have proven useful at predicting and at times controlling outcomes. For example, I learned when I first moved to my present location that if I walk five blocks south and three blocks west from my front door, I will arrive at the pier. That is not a belief based in faith. It can and has been tested. And it's a superior epistemology to faith. By faith, I could believe that I should go two blocks north and four blocks east to get to the pier, and end up even further from it.
Where's the faith there? These are simply brute facts derived from observing external reality,and confirmed by their efficacy in achieving their desired outcome - getting from home to the pier.
Here's my take. The measure of the truth or falsity of a proposition lies in its capacity to generate expected results. If an idea is true, it can be used in the real world to generate predictable outcomes. If it fails to do that, it is useless and should be discarded.
I'm saying that IF the omni-God exists, then there is no doubt--we are logically constrained to conclude that this IS the best of all possible universes.
I can agree with that conditional if-then statement, but it's not relevant to deciding how the world actually is. It is also the case that if no such god exists, there is no reason to believe that this is the best of all possible worlds, but that seems to have been overlooked by you. You have chosen to believe one of these and reject the other on faith, a logical error.
And we can easily decide between the two empirically. Can we make the world better? If so, we have our answer. And yes, we are quite capable of determining if our interventions are making the world better or not.