Nested “do” and “add” Actions is possible?

Question

I'm wondering

Questions were asked about more than one "add_action" and filter nested before and it was deemed possible.

Are nested cross actions added?

Eg.

add_action('init', function(){
   do_action('initialized');
});

function initialized(){
   // ...
}

Second question

Will a vicious circle occur like the following?

function initialized(){
   do_action('init');
}

Answer 1

Yes, you can nest actions.

Yes, your example will cause an infinite loop.