Without any kind of metric for “sophisticated” it’s all subjective anyhow. I like Stuxnet as an example - it’s devious and a true hacker approach, albeit as blackhat as they come.
So you could ask, is a RG machine more sophisticated than say a computer - maybe not on a strictly technical level, but again without a metric, it's all about how we feel about it.
Anyways, I thought it was a great writeup that explains at least one aspect of what sophisticated software is, in a language most anyone could understand.
If we can just capture that essence, we will wield the power of sophistication in our hands.