The blog discusses the importance of fast payment processing in the Fintech industry and highlights the $300 million cable project between New York and Chicago as an example of the value placed on speed in financial transactions. It explains how fast payments enhance customer experience by meeting modern expectations for efficiency and reliability, while slow payments can damage business reputation and operational efficiency. The blog introduces PubNub's technology as a solution to these challenges, emphasizing its 5G edge messaging network that reduces latency and enables real-time transaction processing. PubNub's infrastructure supports scalability, ensures security, and provides instant transaction notifications, making it an appealing option for fintech applications seeking to maintain high performance and user trust. The overall message is that speed and reliability are crucial for fintech success, and PubNub's tools can help achieve these goals.