There's this really interesting blog post Im not remembering about nodejs and async concurrency style as compared to golangs one. I cannot remember the author's

There's this really interesting blog post Im not remembering about nodejs and async concurrency style as compared to golangs one. I cannot remember the author's name, but it goes into length as of comparing async functions and the differences between normal regular func and the async ones, and calling async func only on async scope and so on. Only I remembered I found it retweeted by Brad Fitz. I though maybe someone could guide me to it here