<http://schema.org/description>
"At this juncture in time, humanity does not know how to travel into the past, or even if such a concept has any meaning. So if you are an astrophysicist who wants to discover something about time travel, what do you do? You look for time travelers on Twitter."^^<http://www.w3.org/2001/XMLSchema#string>
<http://newatlas.com/time-travel-search-twitter/30282/>