Note that there are about a dozen relevant threads across various repos, which I omitted for obvious reasons. Yes, arrow-rs contributors have driven the effort

Note that there are about a dozen relevant threads across various repos, which I omitted for obvious reasons. Yes, arrow-rs contributors have driven the effort and made code changes in the arrow-rs repo, but it has absolutely been a collaboration; besides creating new useful apis, arrow2 devs have spent considerable effort to communicate and justify the api differences and the benefits thereof. And switching polars from arrow2 to arrow-rs in the end will not be zero effort. I used neutral language to describe the situation with the explicit intention to avoid spawning unnecessarily divisive commentary here. I don't see how your reading is helpful to understand the broad context.