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For questions that require plausible (better than suspension-of-disbelief) answers based on Real World science that are not necessarily constrained to the known limits of Real World science. Contrast with the hard-science, science-fiction and internal-consistency tags. This tag may not be used alone. This tag may not be used with the science-fiction, hard-science, or internal-consistency tags.

22 votes

What are some of the most powerful theoretical sources of energy?

I would highly suggest that you read the Isaac Asimov book, The Gods Themselves. In this story, humans transport matter between a few parallel dimensions where the fundamental laws of nature are diffe …
KaiGuyMBK's user avatar
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4 votes

How could fungi evolve intelligence sufficient enough to develop a civilization

Nobody seems to have mentioned it so far, so I'll just put this out there as a suggestion. Instead of having a fungus go through the extraordinarily unlikely process of evolving to the point of intel …
KaiGuyMBK's user avatar
  • 889
6 votes

Planning intra-city public air transport

The reason you don't see many air-based transportation in modern cities is simply because it is impractical. Ground transportation is simply much faster for short distances, and much cheaper (uses muc …
KaiGuyMBK's user avatar
  • 889
2 votes

How can I make the supporting pillars of an underground city less obstructive?

If it's possible (and I assume it might be, considering the Lizards are able to make such grand feats of engineering), I would suggest quantum levitation with superconductors. I'm no scientist, but th …
KaiGuyMBK's user avatar
  • 889
3 votes

Could you fly airplanes on Jupiter?

Something other answers don't seem to have mentioned yet: Jupiter has some pretty wild winds. The red spot you see in pictures is a storm that is literally the size of the Earth. So, I feel like the i …
KaiGuyMBK's user avatar
  • 889
1 vote

Would it makes sense for medieval warriors to carry giant bladed weapon on weak gravity?

The problem in a setting with low gravity isn't the weight of the weapon so much as it is the weight of the user. Imagine if you weighed 1/10th your usual weight, and you're trying to swing a gigantic …
KaiGuyMBK's user avatar
  • 889