Questions about Blocks structure

[hanchayi]

Why is the structure of blocks designed as

{
   1: {
        'sys:id': 1,
         'sys:children': [ 2 ]，
         'prop:text': 'aa'
    },
     2: {
        'sys:id': 2,
    }
}

instead of using directly

[
    {
       id: 1,
       props: { text: 'aa' },
       children: [
           {
              id: 2
           }
       ]
    }
]

[raintoway]

The shallower the data structure, the higher the synchronization performance of Yjs, meaning that the resources required to resolve conflicts are reduced.