I am not asking you to do the ID proponents job. I am asking you what kind of experiment would cause you to say... ah I will accept that this is designed (and or there is a designer).
I would think my answer to this would be obvious based on this discussion, but I'll state it explicitly.
I can't answer that because I can't think of an experiment that would be able to discern whether the research topic is designed.
You say that everything we see is explained with "naturalistic explanation that no only explain the phenomena (I wouldn't say the explain the phenomena) and predict things that lead to expansion of knowledge" but that does not prevent the use of induction or deduction of whether design is present.
LOL
Yes, phenomenon are explained by science. The presence of further questions and unknowns afterwards doesn't mean an explanation wasn't provided.
For example, the question of how DNA replicates.
The answer is semi-conservatively with a protein complex called DNA polymerase using one strand as a template to synthesize it's compliment in both directions from a single starting point.
Now there were (and still are) questions GALORE following the initial discoveries of how it worked. That doesn't mean there's some room to question whether there really is a polymerase complex that replicates DNA using one strand as a template. It just means there's details to be worked out to make the picture less muddy.
Many biologists and physicists have stated that there is "apparent design". That seems like a cop out to me. Based on what we know, the the predictive capacity of what already is, we can go from apparent design to actual design.
And yet you're reticent to tell me what that predictive capacity is saying. You keep asking me to answer for you. Onus is on you bud.
but of course naturalists presuppose that it is correct to view things through a naturalistic lens only, thus why there is so much difficulty in presenting evidence or experiment that could be considered design.
Very little science has been proposed in the greater scientific world based on design ideas (as far as I know; there were a few manufactured "scandals" but those weren't quite as scandalous as design proponents indicated).
And why shouldn't a "naturalist" presuppose the best view is the "naturalistic lens only"? That's what's worked for us for decades now and, as we've gone over many times, design ideas don't make for predictions. I can't figure out, and have yet to see, how predictions can be made from a design perspective.
Also, I highlighted the final line because even you appear to be aware that attributing something to design is not objective.
If they are both the case, we would not expect to see different evidence to set apart design.
I don't disagree.
But again, there's no evidence to suggest they are the same or that design exists beyond systems being complex and elegant.