I guess I need to clarify what I mean by the psychological component. Technical and political components are external. Career aspirations and mitigating boredo

I guess I need to clarify what I mean by the psychological component. Technical and political components are external. Career aspirations and mitigating boredom/stagnation by pursuing complicated work create motivations to invent interesting projects. And there’s the ability to claim integration from v1 to v2 as progress. Rather than only change. To put it another way there is always some degree of change for the sake of change motivating our desires for change. Particularly when a big chunk of our time must be accounted for. Typically, playing video games, sleeping, and walking a dog through the woods instead are not viable alternatives in contexts where data migrations are being considered. If migration was something the OP didn’t want to do, the question would be about finding a new job.