Mature? I'd say exactly the opposite. Although it's always existed, the differences between the delta-sigma DACs and the R2R and NOS multi-bit processors seems to be in its relative infancy. Heck, we're still reconciling the convergence of tubes vs. solid state, and that's been going on for 40 years. And digital technology is progressing at a faster pace than analog ever has. So, five years from now I'd expect the digital processing landscape to look very different than it looks today. The analog world, not so much. So I guess mature is relative, and to me digital is the petulant teenager bursting with energy and embracing change in a fast-changing digital world.
