This bit is just mind-blowing to me: > Today, as new services continue to appear and the AWS customer base continues to climb, this function now handles more t

This bit is just mind-blowing to me: > Today, as new services continue to appear and the AWS customer base continues to climb, this function now handles more than 400 million API calls per second worldwide. Would love to see some details on how that service runs, what sort of scale it requires, etc.