Why can't I assign type's value to an interface implementing methods with receiver type pointer to that type?

Question

I am 2-days old in the world of Golang, and going through the go tour. I couldn\'t help but notice a peculiarity which I cannot seem to be able to come at terms with a

Answer 1

Values stored in an interface are not addressable - but why? See here for the answer.

tl;dr its because a pointer to A which points to a value of type A in an interface would be invalidated when a value of different type B is subsequently stored in the interface.