Any thoughts? Please remember when replying that I am an analogue guy trying to navigate the digital world with as little pain as possible.
There is no such thing called "digital".
Toslink is essentially a signal that pertains to modulations in light intensity --> It is ANALOG
Ethernet, I2S, etc are signals composed of voltage modulations ---> It is ANALOG
They are just as ANALOG as your turntable which spun around and gave you lowfi/midfi sound....What you are referring to as "digital" is just a lot more hifi ANALOG than your lowfi/midfi analog turntable. It requires some careful execution and it isn’t exactly plug n play.
Hope that helps.