But K8s is not a development of Google software. It is developed specifically for the public, it throws out all of the interesting parts of Borg, and Google themselves don't use it, or barely do. As for that other stuff it seems to have worked out fine for Google: they describe obsolete technologies and the outside world develops hideous analogs of those and uses them for decades. Hadoop for example is just an unbelievably bad implementation of map reduce as it was ten years ago and is laughable compared to what Google replaced it with. HDFS is a joke of GFS which Google turned off eight years back. It's really remarkable the way the industry is essentially self-disabling in this regard. Meanwhile Google does not burden itself with trying to adopt every idea they read in a paper, and maintain a significant cost and efficiency advantage by doing so.