How do you know a designer exists?Where is the designer -what is the evidence that one exists?
I do not need to know where the designer of my laptop is, to know it is designed.
The design is the evidence of the designer
It is not that difficult to come to the logical conclusion that if I see a building or a painting or nature that there is a designer behind it.
That is why we know, you know, unless you can give me something that can be logically concluded?