I can&#x27;t even begin to measure the amount of time I&#x27;ve wasted trying to make go code look as concise as what I can have trivially in C where things like macros and do { } while() are available.<p>Instead of &quot;simplicity&quot; saving me time as Mr. Pike suggests, it leaves me dissatisfied with the results after wasting my time in attempts to prevent my dissatisfaction.<p>This probably isn&#x27;t an issue for someone new to programming without the expectations experience with other languages may bring, but for a seasoned C programmer Go often feels like a regression.<p>IMHO, what largely makes Go useful over C is the language-level support of coroutines, and not because the simplicity of the &quot;go&quot; keyword or channels, but because it eliminates the need to design and integrate with snowflake event loops or the specifics of blocking&#x2F;non-blocking file descriptors.<p>As a result, packages are written without concern for how the caller&#x27;s event loop will be integrated, you just write blocking code everywhere and it can be used by every Go program with significantly less potential for impedance mismatch.  The garbage collection and overall elimination of the need for allocating and freeing memory also contributes to this; no longer do you have to understand the resource life-cycle strategy of some C library you&#x27;ve decided to use, or if it&#x27;s using the C library&#x27;s allocator or its own, or if it&#x27;s capable of using your allocator via some elaborate and unique initialization scheme.<p>Unfortunately Golang&#x27;s concurrent execution model is also what makes it a pretty terrible language for system programming.  Golang&#x27;s inescapable and largely opaque underlying use of threads is a constant source of pain for anyone programming operating system facilities which influence only the calling thread&#x27;s state, particularly state inherited by child threads.<p>I often encounter misuse of runtime.LockOSThread() in attempts to overcome this problem but as of now this is completely inadequate because the Go scheduler creates new OS threads on an as-needed basis from whichever currently-executing OS thread happens to be executing at the time.  This leaks whatever unique state the thread may have into a newly created, unlocked OS thread, which may then go execute any goroutine - likely the very thing you were attempting to prevent in using runtime.LockOSThread().<p>There&#x27;s plenty more to whine about, but I&#x27;ll stop here.