Sacrilege rule
Sacrilege rule
Digitizing is only lossy once*. Analog is lossy every time you copy it and degrades over time.
*Assuming you use a lossless digital format
Not just any time it’s copied or generally over time, but each playback can degrade the quality. Record pins erode the channels, magnetic heads affect the strength of the magnetic field they read.
Reads, copies, and time don’t (necessarily) degrade digital media, even with lossy compression (time can, but any time it’s copied, it resets the clock to as good as the media can give; analog doesn’t get that reset). Lossy compression only degrades it on conversion and there’s a bunch of control over the shape of that degradation (with the intent of it not being detectable to our ears, though it obviously also depends on the bandwidth available).
Analog is inherently lossy due to the materials and playback method. Vinyl records sound different when they are dusty.
Digital is inherently lossless because the Nyquist–Shannon sampling theorem guarantees that, given a sufficiently high sample rate, all information from the original signal is preserved.
One example: en.wikipedia.org/wiki/Iliad?wprov=sfla1
Yes, you’ll make the argument that the available versions of it are not perfect representations, though that is only because the language and dialect used to produce the work had been lost, the work otherwise remains intact.
Text is a digital format because you have a limited set of characters to represent sounds/syllables. For example: the meaning of the letter ‘B’ doesn’t change if a small piece of the letter is missing or if the letter is slightly tilted, it’s still a ‘B’. If the format was analog, those changes would also change the sound/meaning of the word.
Okay, it’s not really the point I’m trying to make here, but since you bring it up, actually it does matter that we lose the ability to decipher the meaning of digital storage. That is a problem that has only gotten worse.
More importantly, there is meaning in handwriting. We can learn things from how different people wrote the same thing. And people do try to convey subtleties of meaning through drawing the same letter in different ways, and of course, most importantly, you completely ignored the actual point I was trying to make, that even if we ignore that and assume every B is always the same we aren’t talking about content. We are talking about storage media. Smearing ink on paper isn’t a digital process even if you’re literally just writing 1s and 0s. There have been digital ways of storing information for as long as there have been analog ones. Things like beads or knots in ropes. The reason you never hear about them isn’t because they didn’t exist. It’s because all the information they contain has decayed to nonsense. Digital is very binary that way. It’s perfectly retrievable until it’s perfectly gone. We have a lot of techniques now to help extend that useful life, but they still all require active maintenance, and most digital storage media has an average lifespan in single digit years. Even for digital information, the oldest stuff we still have around was stored in analog ways.
But there’s a difference between converting a JPEG to a PNG and re-compressing a JPEG as another JPEG.