> you have all-hands of one of the biggest tech companies in the world working to fix your infrastructure No, they are fixing their infrastructure. The point h

> you have all-hands of one of the biggest tech companies in the world working to fix your infrastructure No, they are fixing their infrastructure. The point here is that all single provider systems are destined for periodic failure. Not relying on one single provider is, in theory, a service's means of providing higher reliability. This is the general argument for regions and availability zones on Amazon, but that relies on trusting there is no single point of failure with the system (i.e. inside Amazon). I've worked for several companies who run the majority of their services on AWS, yet maintain functional systems on other providers in the case of an AWS outage.