TCP Exponential Backoff: Why Your Retries are Doubling

TCP prevents network meltdowns by doubling its wait time (Exponential Backoff) every time a packet fails to acknowledge. Instead of spamming a congested link, I look at how the protocol calculates a dynamic Retransmission Timeout (RTO) and then backs off to allow hardware buffers to clear and avoid total congestion collapse. I find it wild that we can just download a file from a physical computer on another continent through a chaotic web of underwater cables and intermediary servers. When I think about TCP, I'm looking at the protocol responsible for taking that file, chopping it into chunks, and ensuring it arrives mostly reliably despite the physical insanity of the global internet infrastructure. The genius isn't just in the delivery, but in how the protocol knows when to stop talking so the network doesn't cave in on itself. How does TCP handle packet loss? I see TCP ensuring reliability by requiring a specific acknowledgment (ACK) for every data segment sent. If the sender transm