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Explain xkcd: It's 'cause you're dumb.
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(Try to put contribution score back in to see if this will cause any problems. Sinde the problems we had when I removed it did not stop just because I moved it it may have had nothing to do with it)
 
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Latest revision as of 19:52, 31 July 2025

Welcome to the explain xkcd wiki!
We have an explanation for all 3206 xkcd comics, and only 57 (1.8%) are incomplete. Help us finish them!

 Go to this explanation

Latest comic

Cost Savings
Unfortunately, my scheme to trick NASA has now taken over a decade longer than planned and has run way over budget.
Title text: Unfortunately, my scheme to trick NASA has now taken over a decade longer than planned and has run way over budget.

Explanation

This comic depicts a ridiculous scheme, concocted by Cueball, to dupe various representatives at NASA into doing a menial task for him; specifically, he wants them to build an ordinary shed in his yard. The National Aeronautic and Space Administration (NASA) is not associated with hobbyist carpentry and certainly cannot be conventionally ordered to build a shed on a needy citizen's property.[citation needed] Thus, Cueball tries to circumvent the expected barriers to this outcome by masking his true intentions with a long-winded cost-cutting presentation about a proposed satellite launch. Initially, it appears he is suggesting various ways to mitigate the cost/hassle of launching a satellite into orbit. This starts with a lower orbit, which requires less fuel to reach and can bring significant savings per the rocketry equation. Lower orbits can bring challenges due to satellite crowding and (in the extreme case) atmospheric drag.

Cueball soon suggests replacing the satellite with an "aerial platform" (most likely a plane that flies around with the equipment, but weather balloons, blimps, or even helicopters might count). While any atmospheric flight will require some recurring effort to steer and/or repeatedly launch the vehicle, this can indeed cost less than a space launch and communication infrastructure needed to manage a satellite. The tradeoff is that an aerial platform cannot stay up for years like a satellite and cannot see as much of the surface at a given time.

Cueball then suggest reducing the monitoring payload by moving some equipment to a ground location that receives data from the mobile equipment. Such a change might allow the platform to be a drone or balloon, either of which could go further with less weight. Cueball's last, unfinished sentence might be continued as "Additional savings could be achieved by reusing available property instead of buying land. In fact, I have identified a property with room for a structure which would not require any expense apart from construction." Depending on Cueball's level of focus on cost reduction, the end of this reasoning might even lead to "Ditch the satellite idea and just build a shed in my yard".

The title text expands on this theme by implying that Cueball has been attempting this scheme (which may have required extensive effort and connections needed to even be prepared to be seen by the NASA project team with the initial red-herring proposal) for long enough that it mirrors the setbacks a team would experience if they were actually intending to send a satellite into orbit. The James Webb Telescope is one such mission which was very delayed, as already mentioned in prior comics, notably 2014: JWST Delays. The mention of the project being "over budget" implies that NASA was interested enough to assign a budget, but has presumably been delayed by steps such as shed design, environmental review, contractor selection, construction costs, or team reallocation due to shifting priorities.

By taking "over a decade longer than planned", the actual time taken to (not yet) achieve his goal is far longer than it would normally be expected to take to just build a shed without NASA's complicity, excepting perhaps some particularly intransigent zoning laws. The actual delay is unknown but must have been significant. Likewise, the personal costs incurred by Cueball (at a minimum, time and travel) have probably far exceeded what most sheds (and their construction) require, even if the end-goal is a 'free' shed, paid for entirely by NASA.

Transcript

[Cueball is standing in front of a framed graph on a wall, pointing at it with a short stick. The graph is a bar graph with steadily decreasing bar heights. Hairy and Megan, seated, are looking on from behind a desk.]
Cueball: By lowering the planned satellite orbit, we can reduce the size of the launch vehicle required.
Cueball: We can reduce costs further by eliminating the satellite entirely in favor of an aerial platform.
Cueball: Some equipment could be moved to a ground-based facility, reducing required aircraft time.
Cueball: Additional savings could be...
[Caption below the panel:]
I'm trying to get NASA to build a shed in my backyard.


      new topic.png  View comic discussion

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Lots of people contribute to make this wiki a success. Many of the recent contributors above have just joined. You can do it too! Create your account here.

You can read a brief introduction about this wiki at explain xkcd. Feel free to create an account and contribute to the wiki! We need explanations for xkcd comics, characters, What If? articles, and everything in between. If it is referenced in an xkcd comic, it should be here.

  • The incomplete explanations are listed here. Feel free to help out by expanding them!

Rules

Don't be a jerk!

There are a lot of comics that don't have set-in-stone explanations; feel free to put multiple interpretations in the wiki page for each comic.

If you want to talk about a specific comic, use its discussion page.

Please only submit material directly related to xkcd and, of course, only submit material that can legally be posted and freely edited. Off-topic or other inappropriate content is subject to removal or modification at admin discretion, and users who repeatedly post such content will be blocked.

If you need assistance from an admin, post a message to the Admin requests board.