Why are HTML5 and XHTML 2 separate standards?

Question

Is there a reason why these two standards are being developed separately? They seem to be solving the same problem but what are the differences and, if they are to remain se

Answer 1

HTML 5 has been constructed with backwards compatibility in mind, unlike XHTML 2, which was created in order to break away from restrictions involved with backwards compatibility.

The W3C allowed the XHTML 2 working group to expire, essentially ending development of XHTML 2. HTML 5, with backwards compatibility and new features, will become the doctype of the future.