Invalid type assertion by pointer to array

I’m new to golang and confused about the type assertion. Why can’t the following snippet be compiled? what could be the problem by the type assertion in this example?

arr := new([5]int)
arr1, ok := arr.(*[5]int)

>Solution :

type assertion is only for interface.

A type assertion provides access to an interface value’s underlying concrete value.

source https://go.dev/tour/methods/15

example:

    arr := new([5]int)
    i := interface{}(arr)
    arr1, ok := i.(*[5]int)
    fmt.Println(arr1, ok)