[aimhigh]

The signal is recognized as "artificial" in the first place because it exhibits the predicted characteristics.

There will never be such a signal.

[Ophiucus]

There will never be such a signal.

Never? Big word.

There have been 1000-1400 candidate signals already found. However, those analyzed further have yet to meet the stringent requirements on reproducibility and verification.

Yet another reason why SETI is a scientific endeavor and ID fails utterly to any claim of science.