--- title: "Rohan Tiwari (@tyranny) | Hashnode" description: "Beyond Code. Read the latest articles by Rohan Tiwari on Hashnode." url: "https://hashnode.com/@tyranny" --- @tyranny # Rohan Tiwari @tyranny · Nepal · Joined February 2026 Beyond Code ### [Why the Internet Can Never Be Faster Than Light (And How I Proved It With Two Cloud Servers)](https://rabindranath-tiwari.com.np/why-the-internet-can-never-be-faster-than-light-and-how-i-proved-it-with-two-cloud-servers?utm_source=hashnode&utm_medium=feed) There's a number that sounds boring but is actually kind of amazing: 56 milliseconds. That's roughly the fastest a piece of data could travel from New York to London and back, even with perfect intern 6 min read · [rabindranath-tiwari.com.np](https://rabindranath-tiwari.com.np/why-the-internet-can-never-be-faster-than-light-and-how-i-proved-it-with-two-cloud-servers?utm_source=hashnode&utm_medium=feed) [3](https://hashnode.com/posts/why-the-internet-can-never-be-faster-than-light-and-how-i-proved-it-with-two-cloud-servers/6a9ae22c5bc14f367133ab52) [Sep 4](https://hashnode.com/posts/why-the-internet-can-never-be-faster-than-light-and-how-i-proved-it-with-two-cloud-servers/6a9ae22c5bc14f367133ab52) ### [Your System is Crashing, and You're Fixing the Wrong Thing](https://rabindranath-tiwari.com.np/your-system-is-crashing-and-you-re-fixing-the-wrong-thing?utm_source=hashnode&utm_medium=feed) Imagine you are watching a local car wash. The process is simple: cars get sprayed, soaped, scrubbed, rinsed, and finally dried. Everything is flowing smoothly until the drying machine starts acting u 3 min read · [rabindranath-tiwari.com.np](https://rabindranath-tiwari.com.np/your-system-is-crashing-and-you-re-fixing-the-wrong-thing?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/your-system-is-crashing-and-you-re-fixing-the-wrong-thing/6a720b7c781bcbd848d222a8) [Aug 4](https://hashnode.com/posts/your-system-is-crashing-and-you-re-fixing-the-wrong-thing/6a720b7c781bcbd848d222a8) ### [Latency Numbers Every Engineer Should Know](https://rabindranath-tiwari.com.np/latency-numbers-every-engineer-should-know?utm_source=hashnode&utm_medium=feed) Latency is simply the time between asking for something and getting it back. Every system you will ever touch is built out of layers, and each layer has its own latency because each layer is physicall 5 min read · [rabindranath-tiwari.com.np](https://rabindranath-tiwari.com.np/latency-numbers-every-engineer-should-know?utm_source=hashnode&utm_medium=feed) [3](https://hashnode.com/posts/latency-numbers-every-engineer-should-know/6a6df298c524163723383a5e) [Aug 1](https://hashnode.com/posts/latency-numbers-every-engineer-should-know/6a6df298c524163723383a5e) ### [Understanding HTTP MIME Types](https://rabindranath-tiwari.com.np/understanding-http-mime-types?utm_source=hashnode&utm_medium=feed) The internet hosts many kinds of resources, so each resource needs a label to tell clients how to handle it. MIME (Multipurpose Internet Mail Extensions) was originally developed to solve problems mov 2 min read · [rabindranath-tiwari.com.np](https://rabindranath-tiwari.com.np/understanding-http-mime-types?utm_source=hashnode&utm_medium=feed) [Mar 22](https://hashnode.com/posts/understanding-http-mime-types/69bfcf234a1e513e41c5f966) ### [Centralized Cache Key Management In Redis](https://rabindranath-tiwari.com.np/centralized-cache-key-management-in-redis?utm_source=hashnode&utm_medium=feed) In modern web applications, efficient data access is essential for performance and user experience. Redis, a blazing-fast in-memory store used for caching, messaging, and short-lived persistence, depe 6 min read · [rabindranath-tiwari.com.np](https://rabindranath-tiwari.com.np/centralized-cache-key-management-in-redis?utm_source=hashnode&utm_medium=feed) [Mar 20](https://hashnode.com/posts/centralized-cache-key-management-in-redis/69bd4d41475ca17974fa9029)