As technology evolves and advances, long-established parameters may no longer be relevant or useful, and new ones take their place.
Analog circuits inherently have some inaccuracies; if these exceed the allowable specification, there are three general strategies to dealing with them.
It has to hurt when your released product is cancelled and goes into the dumpster, but should it?
The “down to earth” world of analog components and functions is a reality-based counterweight to the relentless. overhyped views of the direction and impact of technology advances.
Analog, discrete-element filters have served us well for over a hundred years, but maybe we now need to focus education on filters for the GHz world, such as SAW and BAW devices?