[ WP ] It 's 9900 years later . An alien expedition lands close to the Hoover Dam .

`` Well, will you look at this, my fellow astronaut companion. This entire planet is barren and void of life. No sign of civilization having existed anywhere. Dang, it's just like 9850 years after those Kepler 452b morons had jacked up their climate. But now there's this large structure here.'' 
 
 `` It's made of concrete, so intelligent beings must have built it. How come this is the only visible and recognizable monument on this planet?'' 
 
 `` Well, I reckon the concrete was poured into individual, rectangular shaped sections - rather than with a continuous pour. Like that, a structure of this size could survive 10,000 years.'' 
 
 `` Dang, then the inlaid star chart at the base, which depicts the alignment of the stars and planetary bodies of this solar system of exactly 9980 years ago, might indicate the date the structure was completed.'' 
 
 `` Remarkable.'' 
 
 `` Yes, remarkable indeed.''
