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Explain xkcd: It's 'cause you're dumb.
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We have an explanation for all 2073 xkcd comics, and only 36 (2%) are incomplete. Help us finish them!

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Airplanes and Spaceships
Despite having now taken three months longer than the airplane people, we're making disappointingly little progress toward the obvious next stage of vehicle: The Unobtanium-hulled tunneling ship from the 2003 film 'The Core.'
Title text: Despite having now taken three months longer than the airplane people, we're making disappointingly little progress toward the obvious next stage of vehicle: The Unobtanium-hulled tunneling ship from the 2003 film 'The Core.'

Explanation

Ambox notice.png This explanation may be incomplete or incorrect: Created by a BOT. Please mention here why this explanation isn't complete. Do NOT delete this tag too soon.

Transcript

[A timeline is shown with three dots on it. Each dot has a label beneath the dot, and the two intervals between the dots are also labeled, with lines indicating which dots are belonging to that label.]
Dot 1:
December 17, 1903
First human airplane flight
Dot 2:
April 12, 1961
First human spaceflight
Dot 3:
Today
Interval 1-2: 57 years 4 months
Interval 2-3: 57 years 7 months
[Caption beneath the frame:]
Spaceships are now older than airplanes were when we flew out first spaceships


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