Information is always measurable in bits. I am not sure that all signals are always measurable in bits. Prior to the discovery of the Rosetta Stone, Egyptian

Information is always measurable in bits. I am not sure that all signals are always measurable in bits. Prior to the discovery of the Rosetta Stone, Egyptian hieroglyphics were signals without information - no decoder existed. Ironically, the number of bits needed to encode all Egyptian hieroglyphics would have been calculable ( presumably the alphabet was finite ) , but they could not have been decoded.