[treis]

I'd call that completely wrong. It's become something of an urban legend but the reality is that AWS was net new. It was not share Amazon infrastructure with the world

[cmiles8]

Correct… Amazon only migrated most of its things to AWS much later and even now some bits are kept separate.

AWS was inspired by certain engineering concepts developed inside Amazon but was launched largely as a greenfield new thing.

Amazon itself is not even “all in” on AWS despite encouraging its customers to do so.