Questions tagged [logic]

For use in questions based in reason, principality, and truth.

Filter by
Sorted by
Tagged with
8 votes
10 answers
2k views

Logical/Scientific Explanation for Umbrakinesis?

I'm working on a story where the characters have elemental-based powers based on natural material/materials/phenomena found in nature. So far, each of the powers makes sense on a physical level, since ...
32 votes
32 answers
7k views

Is there any reason why The Chosen One should bother to do anything if their victory is prophesized? [closed]

Assume the prophecy says that The Chosen One will defeat the DARK OVERLORD. The spell of the prophecy is always accurate and has a 100% chance of being true. This has been mathematically proven and is ...
5 votes
9 answers
3k views

How would computers work if the number zero wasn't invented?

I imagine a parallel world where people instantly went crazy and kill themselves whenever they try to conceptualize nothingness which we now known as the number zero, so no one I mean absolutely ...
  • 46.3k
26 votes
9 answers
4k views

The green and the dragons

In several fantasy works they have the iconic dragons, giant reptile creatures and that commonly breathe fire. In some works these creatures were tamed and trained to serve as military weapons in wars,...
  • 2,674
2 votes
1 answer
229 views

Math on another planet [closed]

Mathematicians constantly create new axiom systems, and there are different concepts of information. My view is that mathematics gets where I am because mathematicians invented notations to write down ...
3 votes
7 answers
428 views

Is this time travel scheme internally consistent?

I know there are similar questions, but not similar enough, and in fact, I don't remember seeing this kind of time travel in fiction. Before I start, it doesn't matter how the time machine works in ...
  • 1,407
0 votes
1 answer
109 views

Retconing God's omniscience and omnipotence with minimal changes? [closed]

So, the world is operated by daemons. Daemons are divine entities that govern various aspects of the world. Think of stuff like river gods, tasked with maintaining the water supply and filtering out ...
3 votes
3 answers
301 views

How can I make my homunculus more efficient to prevent it from burning out?

A person is born with a certain amount of mana, or life-force, which steadily increases as they age. This mana allows our biological forms to function and is used to power spells in magic rituals. ...
  • 38.4k
2 votes
10 answers
2k views

Worlds with different mathematics and logic [closed]

I want to visualize how worlds with different mathematics and logic could function, as opposed to worlds with different physical laws. For instance, I came up with the following examples. A world ...
  • 4,851
9 votes
6 answers
418 views

How can a time-resetter prove the range of their ability?

Consider the magic power of being able to 'reset time' in the style of Groundhog Day or The Edge of Tomorrow, ie revert one's environment and physical state to that of an earlier time while retaining ...
  • 6,884
0 votes
2 answers
149 views

Any new technologies that are ready to be discovered? [closed]

As an electronics engineer, (sort of), I understand how transistor gates (AND, OR, NAND, NOR, XOR, etc.) are combined to create all of our digital devices. The first computers were created in the mid-...
1 vote
2 answers
503 views

How does a luck spell work? [closed]

Don has been a royal pain to Harry, who just so happens to be an aspiring magician, and decides to get some of his own back: he casts a curse of bad luck! Now whenever Donald rolls dice, draws cards, ...
  • 2,201
2 votes
1 answer
333 views

I'm designing a magic system and need some help [closed]

I have been trying to design a magic system for a while now that I'm going to base a project off. And I'm having a bit of trouble. I want the system to be applicable to the creation of an entire world ...
5 votes
9 answers
2k views

What entity executes magical spells? [closed]

In a lot of stories to cast a spell one must say some words or draw symbols on the ground etc. Now it seems like logically, in order for such things to work something has to ever presently watch for ...
  • 1,935
2 votes
1 answer
161 views

Rules for Geological Structures [closed]

I'm trying to create a Random World Generator. To create this, I need to be able to generate geological structures like mountains, volcanoes, etc. What rules (i.e.: min 200 miles between 2 islands) ...
  • 179
14 votes
6 answers
1k views

What would a hand-powered medieval computer need to be feasible?

To clarify, I'm not talking about electronic computation. Instead, the question is as to what barriers would prevent a medieval society from building something in the vein of a Jacquard Loom, or ...
  • 357
4 votes
3 answers
712 views

What are some spells for a philosophical proof based magic system? [closed]

My world is this: Magic exists Magic is invoked by stating logical proofs If you can prove something, it becomes true A stronger proof over-rules a weaker one In a traditional magic system, to cast ...
  • 357
1 vote
3 answers
511 views

What if we discovered a real paradox? [closed]

On an elementary school in the US, there was a teacher who used to give the pupils math exercises he invented himself. One day, they calculated the cathetus of a right triangle and magically, they got ...
  • 131
7 votes
3 answers
1k views

What Kind Of Operators or Functions Should A Magic Language Have?

I am going into considerable detail designing a magic language for a game system. The world is a classical high fantasy type world, with most of the tropes that might be expected from old school D&...
  • 9,571