It seems to me that an article about a spatial phemomenon, or a property of objects, ought to be written in the present tense: "A subspace axis is . . . " (Nmsmith 19:13, 1 June 2008 (UTC))

It seems to me that this article shouldn't exist, as it gives no useful information. At the very least, it should be marked as a stub. --74.211.15.99 04:39, 12 May 2009 (UTC)