I am kinda into science and the universe and I recently found out that madami than 95% of the universe is made up of dark matter and dark energy, and we have no idea what these things are. Kind of like how we can only see a small portion of what so out there as visible light and the rest (ultra kulay-lila light, X-rays, gamma rays, etc) was totally unknown to us until we had the instruments to detect these things, most of the universe is almost completely invisible to us right now, but it might not be forever.
What if all of that unknown stuff, is magic? Think about it, most people never see it or experience it and it is pretty much invisible to them. Maybe Neverland resides in that 95% that is a mystery to us. It is plausible and to the best of my knowledge possible. Sorry if this makes no sense... it makes sense in my head but it is hard to explain and I don't think I did a great job of it xP