Pretty sure both those authors wrote similar concepts, with the same creepy conclusions of taking the technology to a limit. It came up in an acoustics class o

Pretty sure both those authors wrote similar concepts, with the same creepy conclusions of taking the technology to a limit. It came up in an acoustics class once. I said that sound never really dies. It just bounces around until it becomes thermal energy, thus warming the room a little as a prelude to joking about professors talking hot air. A student asked whether, one could recover sound from reverberations that had fallen below RT60? Could you listen back in time to conversations that had happened hours ago? Obviously entropy can't be put back in the box with the technology we have now, but it makes you wonder. Two things have since made me revise the question. One is recovery of sound from video images. The other was an archaeological recovery of sounds from a ceramic vase spun on potters wheel many centuries ago. Sorry but the references for both escape me atm.