I wonder if the shifts they're talking about have really been true migrations. There's constantly new people and companies entering/exiting the industry. New en

I wonder if the shifts they're talking about have really been true migrations. There's constantly new people and companies entering/exiting the industry. New entrants are likely to use whatever is in vogue, so overall there is going to be a shift in what's dominant as time goes on even if no one were to actually switch from one tool to another.