Highlights the need for a redundant multi-cloud or hybrid private-public architecture with burst failover in case of an AWS like outage. Many employed poor discipline in counting on the 99% reliability at US-EAST-1. For most makes poor economic sense to double infrastructure spend to address a 1%. For those that it does - they should have alternate architectures. This 4-hour outage should be a wake-up call as it means Amazon has 83 more outage hours to go before they get to 1%.