> There's no function coloring and all functions are asynchronous. There's another form of function coloring, "does this function take context or not". - It's

> There's no function coloring and all functions are asynchronous. There's another form of function coloring, "does this function take context or not". - It's easy to call function-without-context from function-with-context (but it breaks cancellation) - It's hard to call function-with-context from function-without-context (you must create context first) - Some functions in standard library have context, and some don't