The promise of decentralized social networks often includes resilience against single points of failure, yet recent events demonstrate the complexities involved. On Thursday evening, users of the decentralized platform Bluesky encountered a significant service disruption. For approximately one hour, both the web and mobile applications were inaccessible, preventing users from loading the service. This unexpected downtime highlighted the operational challenges still present even in decentralized architectures.Bluesky promptly acknowledged the issue via its official status page. The company attributed the widespread outage to "Major PDS Networking Problems." PDS refers to the Personal Data Servers that are fundamental to Bluesky's architecture, storing user data within the network. The first notification regarding the problem appeared at 6:55 PM ET, signaling the start of the disruption. Fortunately, the team worked quickly, and a subsequent update at 7:38 PM ET indicated that a fix was being implemented, leading to the eventual restoration of service.This incident inevitably sparked conversations about the nature of decentralization itself. How could a network designed to be distributed suffer such a widespread outage? While the long-term vision of decentralization aims to eliminate single points of failure, the current reality, particularly for newer platforms like Bluesky, involves infrastructure components that can still impact overall service availability. An outage affecting Bluesky's core PDS infrastructure, even if temporary, demonstrates that certain centralized elements can still cause broad disruptions, especially in the network's formative stages.The downtime also fueled some existing rivalries within the decentralized social media space. Users and proponents of Mastodon, another prominent decentralized network operating on the ActivityPub protocol, were quick to comment on the situation. Some used the opportunity to highlight perceived differences in architectural approaches or to make light of the situation, underscoring the ongoing debates about the best path towards truly resilient decentralized systems. The event serves as a reminder that achieving robust decentralization is an ongoing process, involving technical hurdles and evolving infrastructure strategies.