Yes, as samatman said, main reason is that blocks of (code or data there is no difference) don't evaluate so they are passed as function arguments and the function can potentially evaluate them. So if is a function that accepts two arguments, a boolean and a block of code.
loop is a function that also accepts two, integer for number of loops and again a block of code.
Even fn that creates functions is a function that accepts two blocks, first is a list of arguments and second is a block of code. There is no big difference between function fn and function print, they are both builtin functions defined in same manner and there are multiple fns for special cases and you can create your own on "library" level.
loop is a function that also accepts two, integer for number of loops and again a block of code.
Even fn that creates functions is a function that accepts two blocks, first is a list of arguments and second is a block of code. There is no big difference between function fn and function print, they are both builtin functions defined in same manner and there are multiple fns for special cases and you can create your own on "library" level.