Sound cannot persist in time because it leaves no physical trace

Evidence

One of the major disadvantages of sounds and voice is that they do not leave a permanent physical trace like a footprint in sand. Thus, animals are not able to use sounds as message records to transfer sound-based information in time. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 69

Categorization

• CANDY: Sound vs. footprint as message storage — a quick, evocative contrast.
• corroborated: 2 independent passages support this claim — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 69