For many (most? all?) of the readers of this blog, that seems like a particularly dumb*ss question. Sorry for the “coarse language,” but it really seems to be the only way to fully express the sentiment. David Bowie HAD to be a Starseed (or Wanderer).
For those who are not familiar with the term, I will not elaborate here. (Much discussion can be found elsewhere.) But Starseeds / Wanderers (many debate the nuances and differences between those, if any difference really does exist) are characterized by a sense of alienation that starts at an early age and never goes away. This isn’t just alienation in the community or neighborhood; it is a sense that one is from another planet from another galaxy.
Bowie’s content, both in music and in acting, focused either directly or indirectly on this kind of thing. From the disoriented Major Tom who drifted off in space through Ziggy Stardust and the Spiders from Mars to “The Man Who Fell to Earth,” Bowie wrote (and acted and performed) this theme repeatedly over a number of years.
If you think you might be a starseed or wanderer, and you have not seen “Man Who Fell to Earth,” see it as soon as you can. Opt for the uncut version if you can handle adult issues involving sexuality. Chances are good you will feel a striking familiarity with this story. (One caveat: some parts of it are quite disturbing.)