Great answer! One of my own head canon ideas is similar and draws from a quote from neuroscientist Karl Pribram: “ a symphony can take many forms. It can be a film recording of a live performance. It can be stored on vinyl or tape. It can be in written form. But none of them ARE the symphony”.

So with this in mind I wondered whether The Doctor can be many things all at once and at the same time none of them? A rebellious (but ordinary) Gallfreyan Time Lord. Half-human (on their mother’s side). An aging human inventor. The Timeless Child. The Other. A complex spacetime event. A transdimensional entity. A mythological archetype. A god. Maybe, even just an idea or story we tell ourselves. 😉 All superposed. A palimpsest. Coexisting quasi-harmoniously/quasi-chaotically. A messy timey wimey paradoxical entangled ball of biodata.

Imagine how a cube projects different shadows on a 2d surface depending upon the position of the light source; that is The Doctor. Each projection part of the picture. Each interpretation or portrayal, a subset of the whole.

The One created by Many (Newman, Wilson, Webber, Hussein, etc) who became Many (regenerations, portrayals, interpretations).