[sofixa]

> Wow, I'm surprised it took AWS this long to (mostly) catch up to Azure, which had this feature back in 2015:

Microsoft had the benefit of starting later and learning from Amazon's failures and successes. S3 dates from 2006.

That being said, both Microsoft and Google learned a lot, but also failed at learning different things.

GCP has a lovely global network, which makes multi-region easy. But they spent way too much time on GCE and lost the early advantage they had with Google App Engine.

Azure severely lacks in security (check out how many critical cross-tenant security vulnerabilities they've had in the past few years) and reliability (how many times have there been various outages due to a single DC in Texas failing; availability zones still aren't the default there).