How many consecutive hyphens can you have in a domain name?

A seemingly simple question which sent me down into the murky depths of standards. How many consecutive hyphens can you have in a domain name? It probably isn't sensible to name your online presence a----------hyphen.com - but is there anything technically stopping you? Table of ContentsHistoryTLD RestrictionsAnomaliesSo What? History Let's do some history! This is 1978's "HOST NAMES…