Goroutines

Would a visual debugger like gotrace have caught three concurrency bugs found via static code reading in a production Go library? The answer reveals a fundamental taxonomy that holds across all programming languages.

Go, Node.js, Java virtual threads, Erlang, Rust, Python, Kotlin: each language’s concurrency model is a different engineering trade-off against the same physics. This article builds the framework for understanding all of them, starting from the OS scheduler and working upward.