>2. The use of fibers/coroutines as built-in error boundaries. This is such a pleasant natural extension to the Erlang proposal I find myself wondering why so f

>2. The use of fibers/coroutines as built-in error boundaries. This is such a pleasant natural extension to the Erlang proposal I find myself wondering why so few of the languages I'm familiar with have taken the same approach. Presumably I need to get out more. This is done in Lua, although it has a divergence between `pcall()` and `coroutine.wrap()`.