Many Ways to Die — A Family Map of 11 Garbage Collectors

The same line `list = null` frees immediately in CPython, waits for the next minor GC in V8, completes sub-ms concurrently in ZGC, dies only when the actor dies in Erlang, and was dropped at compile time in Rust. A cross-language tour of garbage collection across 20+ runtimes, organised by algorithm family, threaded by one main-line program.