Quoting AWS Lambda PR/FAQ

Brilliant throughout, with lots of small, golden nuggets. PR/FAQs like this are, for me, a bit wordy but you can see how effectively the technique is used here to explain the impact of not just a ground breaking new technical approach but also a major shift in AWS’s compute billing model to a wide audience:

When we launched Lambda, security was not negotiable – and we knew that there would be trade-offs. So, until Firecracker, we used single tenant EC2 instances. No two customers shared an instance. And this was expensive, but we knew that long-term that it was a problem we could solve, and we trusted our developers to deliver. These days, we can securely pack thousands of micro VMs onto a single bare metal instance. It’s a reminder that innovation doesn’t happen overnight, and that meaningful change is often incremental. As Jeff said, “if you’re going to do anything new or innovative, you have to be willing to be misunderstood. And if you’re not willing to be misunderstood than don’t do anything new or innovative.”

AWS Lambda PR/FAQ