Packet switching networks
One of the most interesting technologies I’ve ever studied is packet switching networking. It’s not intuitive that breaking up a message into smaller pieces and letting each of those pieces traverse independently to a destination would increase resilience of the message being received.
The versatility of TCP and UDP allows it to be overlayed, tunneled, and encapsulated with other protocols and functionality. It also allows it to be blocked, filtered, and tracked.
Maybe with the links below you’ll find some new ways to use this technology to accomplish your own goals or work around the goals of people and systems trying to limit your own freedoms.