> Sadly, this initial effort, while it worked, scaled incredibly poorly — even so-called "modern" operating systems like macOS 10.12 and Windows 8.1 simply melt

> Sadly, this initial effort, while it worked, scaled incredibly poorly — even so-called "modern" operating systems like macOS 10.12 and Windows 8.1 simply melted or failed entirely when creating any non-trivial number of threads. (To me, creating 100 threads should be a no-brainer, especially if one limits the stack size appropriately. I’m used to be able to create thousands of threads without concern. Both work just fine with hundreds of threads, and both offer built in thread pools, for that matter. I have 345 processes running on OS-X right now.