I must live in a bubble, protected from the real world, because a lot here surprises me. Is it common for corporations to doubt the reliability of Amazon? This whole paragraph was a surprise to me:

"They wondered if Amazon was reliable. This might seem like a strange thing, but in their world, the world of proprietary infrastructure, which is remarkably unreliable, it made sense. Literally, they wanted to know how many nines, how many OC-48s, disaster recovery, etc. They wondered if Amazon scaled. "

Is this normal? Do large corporations simply assume that proprietary technologies are better than anything else?

Also: This is the first story I know of where a startup committed 100% to Clojure, and then had a reasonably successful end for the story. As such, I think this story is important.

This also was a big surprise to me:

"I laid some of the skepticism to rest once I was able to explain that Clojure was a JVM-hosted language, which meant that much of the Java ecosystem could be leveraged, including debugging tools, profiling, etc. Although no one said so aloud, I think that they took this to mean that if the acquisition was completed, the system could be migrated to Java. Heh heh."

So big corporations are so committed to Java that they won't even consider anything else?