What are the key takeaways from “Fuzzing Programs to Find Bugs - Computerphile” on Computerphile?

What is this episode about?

Software often fails because developers cannot predict every possible user input. Fuzzing—specifically coverage-guided fuzzing—uses evolutionary algorithms to automatically generate and mutate inputs, navigating complex code paths to trigger crashes. By treating code coverage as a fitness function, these tools systematically uncover deep-seated vulnerabilities that manual testing and static analysis consistently miss.