The answer to how we determine if something is designed or not is by looking at the thing in question and viewing the clear evidence of design.
This doesn't make sense as an answer to the question on how design is detected.
You basically answered with "well, you look at it and then detect the design".
The equivalent of your non-answer would be like:
"
How do you fly a plane?"
"
Well, you just go sit in the cockpit and then fly it".
Perhaps you would like another shot at answering the question?
We can also view the evidence of design
What "evidence of design"? What does "evidence of design" look like? How do you differentiate it from "evidence of natural phenomena"?
and say to ourselves "maybe it's not designed" then continue with that belief, as you have done. However, no matter how long we continue with that belief, the evidence will and has continued to support the belief that everything in our reality is designed for a specific purpose.
How, exactly? You know... which is what you were asked. You continue to provide us with non-answers. Please try to be clear.
Believing that the evidence suggests undesign when it continues to support the belief of design, is ignorant.
How does it support design? What would the evidence look like if it supported natural forces instead?
Let's try this again... ignore the rest of my post if you want and just answer these question:
1. Give me your BEST example of "evidence of design".
2. Explain HOW that example is "evidence of design" (ie: don't just assert it, EXPLAIN it)
3. Explain how this evidence should be different in order to no longer support design, but support natural forces instead.
Looking forward to your answers.....