It's not. And to give you a simple answer that should make you rethink this idea: Why do we have different tape speeds then?
When you're done, try to find out what Tape Bias is used for.
[magnetic tape consists of many, irregularly sized and irregularly spaced magnetic domains, small piece of iron. Irregularity is not to be confused with infinity. Fact is, audio tape has very limited bandwidth and dynamic range, it imposes huge amounts of distortion due to the inherent level and history dependencies of all things magnetic.
In fact, audio tape technology is a huge mess held together and only made usable by extensive and really clever band-aids like pre- and demphasis, companding, bias tones and a rather demanding gain staging]
You're doing yourself a disfavor. What you're saying is naive, it's nonsense. The part that you don't understand (yet), is called the "sampling theorem". Study it please, it's your primary canvas, maybe worth getting an idea about sooner than later.
All digital audio sampling systems are continuous.
They all have continuous capture and continuous reconstruction. But it's called hi-tech for a reason, there's an incredible amount of cleverness in this. Most people aren't able to figure it out intuitively (which is fine).
It also explains why whole universities and professions are dedicated to this aspect.
In any way, it took over the world, already 25 years ago. Not just in audio, but just everywhere we want to capture, memorize and reproduce continuous data. For a good reason: It works perfectly fine, better than any analogue sampling could ever deliver.
Ruper Neve has proven more than once that he too, has difficulties at understanding the sampling theorem. He simply never got it. Forget authorities, learn to think for yourself and
verify your ideas at least once before spreading them in such an aggressive manner.