This paper diffracts Deleuze and quantum physics through Winnicott's work to argue for an enrichment to playing. The roots of the play-cognitive hierarchy in Freudian psychoanalysis makes visible that progression and the stages that a child must pass en route to rationality continue to feed educational assumptions that a child must leave playing behind in order to learn. Addressing critiques of Freud's psychosexual theory of child development, I introduce Winnicott's work on playing as creative activity and transitional phenomena which cast playing in a positive light. I then turn to Deleuze's critique of Freud's foundational concepts of child development influenced by Newtonian physics to argue that a Deleuzian concept of energy aligns with quantum physics, which unsettles the binary play-cognition hierarchy. I introduce a vignette to illustrate a rich array of concepts involved in playing that are read through Winnicott. In the final step, I argue that Winnicott's transitional object provides a juncture with Deleuze's concept of the partial/virtual object paving the way to graft an alternative and more processual ontology onto Winnicott's work on playing that acts beside cognitive connections in ways that bring learning alive and liberate teachers to enter less constrained relationships with children.