We do an awful lot nowadays, though. Hmm, actually, I guess it is a straightforward equation I just don’t have my pencil or envelope handy. Imagine that we are

We do an awful lot nowadays, though. Hmm, actually, I guess it is a straightforward equation I just don’t have my pencil or envelope handy. Imagine that we are interacting with all the accumulated good stuff, plus the modern good stuff, as well as the old good stuff (the old crud is forgotten). If our productivity is growing exponentially, is the proportion of crud increasing over time?