You cannot pull apart an uncracked egg, because it’s smooth and edgeless. The whole point of the first step is to change the egg into the kind of egg you can pull apart, by giving it a place for your fingertips to go.
I like this analogy for a perspective shift to make it easier to start something. I find I often need to start working on a project to figure out how to approach the whole thing. I’m working on a new website now and many of the steps I wrote out for myself before starting have turned out to be dependent on other steps I didn’t think of, or that I thought could come later. But that’s fine, I’m adapting my plan as I go.