• 1-4 years
    1-4 years
  • 5-14 years
    5-14 years
  • 15-49 years
    15-49 years
  • 50-99 years
    50-99 years
  • 100-999 years
    100-999 years
  • 1000+ years
    1000+ years
  • It hasn't already collapsed?
    It hasn't already collapsed?
  • I have some other crazy theory I'll explain in the comments
    I have some other crazy theory I'll explain in the comments
1251 votes