Surely you know the difference between something designed and not designed otherwise youd be driving off roads and into buildings and youd have trouble reading this text
Design detection is something we do all the time. Now from a scientific standpoint, SETI and forensic science use design detection more to the point, see also The Wow! signal of the terrestrial genetic code
I have my notions but I'd like to hear from you something we can see that wasn't designed.
I want to know something you don't think your designer had a hand in.