“If earth is the third planet from the sun, then isn’t every country a third world country?”

The term “third world” was popularized in the 1950s during the Cold War and referred to political alignments, but there’s a joke:
 
“If earth is the third planet from the sun, then isn’t every country a third world country?”
 
The joke was cited on Twitter on December 1, 2011.
 
   
Wikipedia: Third World
The term Third World arose during the Cold War to define countries that remained non-aligned with either NATO, or the Communist Bloc. The United States, Western European nations and their allies represented the First World, while the Soviet Union, China, Cuba, and their allies represented the Second World. This terminology provided a way of broadly categorizing the nations of the Earth into three groups based on social, political, cultural and economic divisions.
 
Twitter
David A. Symons
‏@o6uoq
If earth is the third planet from the sun, then isn’t every country a third world country?
6:34 AM - 1 Dec 2011
 
Twitter
Kurogane Shiroikaze
‏@kurogane_s
If the Earth is the third planet from the sun, then isn’t every country a third world country?
7:20 AM - 1 Dec 2011
 
Namibian Sun
Funny Facebook statuses
Submitted by Sun Reporter2 on Tue, 2012-09-11 10:48
(...)
If the earth is the third planet from the sun, isn’t every country a third world country?
 
reddit—Shower Thoughts
From the perspective of our solar system, Earth is a Third World Problem
submitted May 19, 2015 by BigJ76
 
reddit—Shower Thoughts
If the Earth is the third planet from the Sun, then isn’t every country a Third World Country?
submitted December 1, 2015 by sutto85
 
Twitter
Philosoraptor
‏@_Phil0s0rapt0r
If The Earth Is The Third Planet From The Sun ... Then Isn’t Every Country A Third… http://creatememe.chucklesnetwork.com/memes/535/if-the-earth-is-the-third-planet-from-the-sun_th/?utm_campaign=auto_social&utm_source=twitter&utm_medium=%40_Phil0s0rapt0r … #philosoraptor #meme
2:02 PM - 19 Jul 2016