Kind of funny -- if I understand this correctly -- that Javascript was descended from Scheme which has delimited continuations and yet Javascript has async/await and function coloring nonsense, while ruby has continuations and fibers and doesn't need to worry about "function coloring" or "callback hell".

(Which I don't understand very well because I was a ruby programmer for 12 years, so missed all the async/await/callback-hell nonsense entirely that everyone is so obsessive about these days)