On 19 May 2005 11:44:34 -0700, "lonelytraveller"
wrote:

Neither platform is on the surface, and I am unable to fly over the
various obstructions, and nor do I have X ray eyes to see where beneath
my feet each platform begins/ends, so I don't see how that is possible.

Have you ever even been there? Try walking between KX Thameslink and
KXStP Circle Line over the surface - like Mr Feather says, it's
obvious if you actually do it.