What you'll learn
- βWhy single points of failure (SPOF) are dangerous
- βStructural differences between centralized and decentralized networks
- βThe blockchain trilemma β why Bitcoin is slow
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Single Point of Failure (SPOF)
When an entire system depends on one point, a failure at that point stops everything.
Bank servers, AWS data centers, SWIFT payment networks β all the financial infrastructure we take for granted actually depends on a handful of critical servers.
Bitcoin's solution: eliminate the core server entirely. Instead, tens of thousands of computers worldwide hold an equal copy of the same ledger. No single server to attack means no single point of failure.
Real-World SPOF Examples
π¦βΌ
Bank Outage
CentralizedβοΈβΌ
Cloud Server Down
Centralizedπ΅βΌ
Government Block
Centralizedπ
Centralized
Attack 1 core server
β Complete shutdown
πΈ
Decentralized
Remove any node
β Network survives