Not enough room in DNA

Actually, we know something like that would be designed because we can either reverse engineer how it was designed, or have examples of similar things that we know ere designed. None of this is true for living organisms. Or perhaps you could reverse engineer for us how they were designed? SETI also does not applly here, becuase if we ever picked up a radio signal from aliens, we would probably be able to reverse engineer the kind of transmitter used based on the signal itself.So, your analogies are false.

You failed to answer the second, and most important, part of the question; "How do you know?".

Hello CT, Would you mind explaining what is not valid about the assumption that if we can reverse engineer something we can say that that is probaly how it was designed? Asserting they are invalid does not make them so. No they're not, for the reason I pointed out. Seeing as you can't come up with arguments against my reasons, except with "I don't agree!", I don't see any reason to take your analogies as valid.

For those interested, Here is a link to the complete "Voyage".