I used to be a student of gadgets in the 80s. In analog you could have almost infinite quantity of beliefs, but digital had ones and zeros. And binary transmission means lots of zeros and ones
As an example in analog transmission, easily wished to transmit the amount 254, I would simply send it as 3 digits, a two and a five and a four. But also in digital, specifically binary transmission, it would have to be almost 8 digits, i. e. 11111110, i. e., a series of seven ones and then followed by one zero.
I have recently been talking about binary transmitting when talking about digital, because they are not the same thing. Binary transmission is merely one type of digital transmission. Right now there can be many others. For instance there may be trinary, which would transmit zeros, ones, and twos. You get the idea. https://sparkpi.co.uk/
It is because, in creating electronic brake lines, you can very easily create switching circuits that will have a high voltage, i. e., an one and a low voltage, i. e., a zero.
So, to the original question. Why is analog not as good as digital? Are we missing something? Did out engineering teachers miss out on teaching us about some important part of the deal here? To get instance, could it be about economics and not about electronics at all?
We queried our instructors. Though they all realized that digital was out of date, there were few who could give us more than standard party-lines. Of course there were the old-timers who stood staunchly behind the power electronic devices depending on the analog paradigm.
It had been the belief of these old-timers that the real electronics was the power electronics with pressure tubes and a complete lot of heat. They will told me of huge factories and professional products that ran on these power electronics.
They pooh-poohed the latest fads spinning around digital electronics as a fad that was not worth more than making doorbells or kids projects. Probably that is all that they were subjected to in the name of digital electronics. Provided that two decades have passed, we certainly have answered many of our early questions, but we have also created new and stronger questions.