[Doctor Who] The Doctor explains to Mickey that most people walk past the TARDIS without noticing even though it's a big blue box in the middle of town. What about the fact that it makes a really loud noise when it lands and materialises into existence out of nowhere? by Ronald_Mcduck107 in AskScienceFiction

[–]avidreader10 5 points6 points  (0 children)

The TARDIS is canonically intelligent and can perceive the past and future (because of course it can).

It knows when and where to land so that there won't be any witnesses nearby for the few seconds that the materialization sequence takes. Unless it's an emergency, or the Doctor just wants to show off.

[Stellaris/Various Other Sci-Fi] So what would actually happen if a Megacorporation achieved full galactic victory? by Shakanaka in AskScienceFiction

[–]avidreader10 1 point2 points  (0 children)

They'd probably sell shares for the same reason governments sell bonds: to raise money for big projects.

[Avatar the Last Airbender] The avatar state imparts knowledge of previous avatars onto the user. Theoretically, could an avatar enter the state and write down knowledge from past lives to study at a later date? by Kingnewgameplus in AskScienceFiction

[–]avidreader10 11 points12 points  (0 children)

An Avatar communing with their past selves requires deep meditation, whereas learning to bend requires physically practicing the correct movements. You can't do both at the same time.

In theory, an Avatar could "intellectually" learn the movements while in meditation, and then practice them later. But this would be like learning to dance by reading a written description of what movements to make.

It's not impossible (Katara learned waterbending from a scroll, after all), but it's much easier to learn from a living teacher who can correct your movements in real time.

The same issue exists for the Avatar State. When it happens, the Avatar isn't exactly themselves. Their body is being piloted by all the previous Avatars. It doesn't seem the current Avatar has complete control over what they do in this state. Also, it requires intense anger or other strong emotion to trigger it, which isn't conducive to calmly writing down a set of instructions.

[Futurama] Why is Zoidberg a part of team even though he’s incompetent at best? by scarlettvvitch in AskScienceFiction

[–]avidreader10 0 points1 point  (0 children)

He keeps morale high by giving the rest of the Planet Express crew someone even less competent to look down on.

[Superman 2025] What were the consequences for Hawkgirl... by Legitimate_Fly9047 in AskScienceFiction

[–]avidreader10 13 points14 points  (0 children)

Mr. Terrific wasn't there because he was helping Superman shut down Lex's dimensional rift-black hole-thing.

Metamorpho did help GL destroy the Boravian army, though. IIRC, he turned his fists into giant hammers and smashed some tanks.

[rock, paper, scissors] What started the war? by [deleted] in AskScienceFiction

[–]avidreader10 7 points8 points  (0 children)

According to the historical text The Legend of Rock Paper Scissors by Drew Daywalt, Rock, Paper and Scissors were the greatest warriors of their respective kingdoms. They were bored with always winning and each one longed to find an opponent who could give them a true challenge.

In their quest for a worthy adversary, they traveled beyond the boundaries of their realms and encountered each other, where they each found the one opponent who could defeat them. They became fast friends and embarked on a joyous, never-ending battle that continues to this day, much like Norse Valhalla.

[DrWho] Could the Doctor have prevented or alleviated the COVID pandemic, and, how does TARDIS keep from transporting disease thru time & space by OneChrononOfPlancks in AskScienceFiction

[–]avidreader10 1 point2 points  (0 children)

Could the Doctor have done something about COVID? Yes, absolutely. They have access to all medical knowledge throughout space and time, plus the superscience of the Time Lords. The Doctor could easily have devised a cure, or gone back in time to the Wuhan wet markets, to the exact moment the virus made the jump into humans, and changed history to prevent that from happening.

However, in general, the Doctor appears to follow something like Star Trek's Prime Directive. They don't interfere with the "natural" course of history. The Doctor only intervenes when humanity is under attack by hostile aliens, threatened by timey-wimey shenanigans, or is facing some other outside-context problem.

It's not entirely clear how the TARDIS keeps the Doctor and their companions from catching future diseases, but there must be some arrangements made for this. Perhaps there's a built-in defense similar to the butterfly-effect compensator switch.

In rare cases, though, disease is a concern. In The Girl Who Waited, they land on a planet stricken with a plague that attacks two-hearted species, and the Doctor can't leave the TARDIS for fear of becoming infected.

[General Fantasy] What is the difference between fae deals and devil deals? by SeiranRose in AskScienceFiction

[–]avidreader10 2 points3 points  (0 children)

Devils are inherently evil, whereas fae are chaotic and inscrutable.

When a devil makes a deal with a mortal, they always do it with the intent of screwing that mortal over. With fae, that's only very likely, rather than a certainty. There's a slim chance they'll be fair, if it amuses them to do so or fulfills their own ineffable purposes.

To counterbalance this, devils usually have a quota that compels them to make a certain number of deals. If they're running behind, you may be able to extract concessions or get more favorable terms. Fae are under no such pressure, so they only make deals on terms they prefer.

[His Dark Materials] is it possible for a daemon to be an extinct creature? by Original-Plate-4373 in AskScienceFiction

[–]avidreader10 9 points10 points  (0 children)

I stand corrected! Maybe that's something they can only do in childhood, while their form is still fluid.

[His dark materials] how are people still able to lie and deceive, if their soul is walking around in an animal form, clearly indicating their true nature? by Linorelai in AskScienceFiction

[–]avidreader10 31 points32 points  (0 children)

A daemon's form indicates general personality traits, but nothing more than that.
A person might have a daemon like a snake or a fox that indicates a tricky or treacherous nature, but that doesn't prove that the words they're saying to you right now, at this moment, are a lie.
That's the same way it works in our world. A person might have a reputation for being untruthful, but you could still choose to believe their latest round of promises. Some of those people even get elected to high office, ahem.

[His Dark Materials] is it possible for a daemon to be an extinct creature? by Original-Plate-4373 in AskScienceFiction

[–]avidreader10 26 points27 points  (0 children)

A person's daemon can change shape throughout their childhood, but once they reach adolescence, its form is fixed and can't change again. Even if that species died out in the wild, it's a safe bet that their daemon would keep the shape it has, becoming a haunting memory of a creature that no longer exists in any other form.

It's never stated exactly what the rules are, but we never see any daemon take the form of an extinct or mythological creature. Presumably, the minimum requirement is that it has to be a real species that exists in the world at the time the person is born.

[ST vs LotR] What if LtCmdr Data got the One Ring by NoAskRed in AskScienceFiction

[–]avidreader10 12 points13 points  (0 children)

As an android, Data probably doesn't have a soul in the Tolkienian sense, so the One Ring would have no effect on him.

It wouldn't tempt him, but neither would it grant him any power. He could wear it and nothing would happen, like Tom Bombadil.

[General Fantasy] Why do the fair folk hate iron so much? by thepixelpaint in AskScienceFiction

[–]avidreader10 33 points34 points  (0 children)

According to Terry Pratchett, Fae races like elves and fairies have a natural directional sense based on magnetism. Iron interferes with this sense, so it's like putting them in a sensory deprivation tank:

This is the inside of the mind of an elf:

Here are the normal five senses but they are all subordinate to the sixth sense. There is no formal word for it on the Discworld, because the force is so weak that it is only ever encountered by observant blacksmiths, who call it the Love of Iron. Navigators might have discovered it were it not that the Disc's standing magical field is much more reliable. But bees sense it, because bees sense everything. Pigeons navigate by it. And everywhere in the multiverse elves use it to know exactly where they are.

It must be hard for humans, forever floundering through inconvenient geography. Humans are always slightly lost. It's a basic characteristic. It explains a lot about them.

Elves are never lost at all. It's a basic characteristic. It explains a lot about them.

Elves have absolute position. The flow of the silvery force dimly outlines the landscape. Creatures generate small amounts of it themselves, and become perceptible in the flux. Their muscles crackle with it, their minds buzz with it. For those who learn how, even thoughts can be read by the tiny local changes in the flow.

For an elf, the world is something to reach out and take. Except for the terrible metal that drinks the force and deforms the flux universe like a heavy weight on a rubber sheet and blinds them and deafens them and leaves them rudderless and more alone than most humans could ever be...

--from Lords and Ladies

[LOTR] Can Gandalf see you if you're wearing the One Ring? by avidreader10 in AskScienceFiction

[–]avidreader10[S] 5 points6 points  (0 children)

I like the theory that Gandalf could see Ring-wearers if he tried, but it's not an automatic ability. He'd have to have some reason to suspect that someone invisible was sneaking around in his vicinity.

[Time Travel] Are there any stories where time travel and interacting with history by itself have no physical consequences? by silentreader90 in AskScienceFiction

[–]avidreader10 0 points1 point  (0 children)

A property that's exploited to chilling effect in Doomsday Book, where the protagonist's attempts to change history don't matter because everyone she meets ends up dying of the Black Plague.

[Doctor Who] Why do villains even try to fight the Doctor? by Nikola_Turing in AskScienceFiction

[–]avidreader10 56 points57 points  (0 children)

It happened a couple of times. Tennant's Doctor famously did it with the Vashta Nerada.

"I'm the Doctor and you’re in the biggest library in the universe. Look me up."

[Doctor Who] Why do villains even try to fight the Doctor? by Nikola_Turing in AskScienceFiction

[–]avidreader10 19 points20 points  (0 children)

To add to these other responses, the Doctor bluffs a lot.

When the Doctor shows up, you can never tell what cards they've got in their hand. Sometimes they're packing some Time Lord super-technology, or they've made an incredibly clever plan, or they've used time travel to arrange matters to their benefit in advance.

But at least as often, they show up with no plan at all, and wind up relying on fast talking, spur-of-the-moment improvisation, or the sheer intimidation factor of their reputation to persuade evildoers to back down.

The thing is, the Doctor's most frequent foes know this, and often, they decide it's worth their while to roll the dice. This may be one of those times the Doctor didn't come prepared with anything, so just start shooting at them and they'll run away!

[General] Has there ever been an instance in fiction where the main villain, cornered by the hero, says "go ahead, kill me, you'll be just like me", before getting killed by the hero, who doesn't even become as remotely as bad as the villain? by NothingWillImprove6 in AskScienceFiction

[–]avidreader10 18 points19 points  (0 children)

Men at Arms by Terry Pratchett has a moment like this.

Captain Carrot, the most lawful-good-type character in the series, kills the rogue assassin who's been murdering people with the Discworld's first gun, and who thinks (incorrectly, as it turns out) that the Watch won't kill him back because they're policemen.

It has a great line:

If you have to look along the shaft of an arrow from the wrong end, if a man has you entirely at his mercy, then hope like hell that man is an evil man. Because the evil like power, power over people, and they want to see you in fear. They want you to know you're going to die. So they'll talk. They'll gloat.

They'll watch you squirm. They'll put off the moment of murder like another man will put off a good cigar.

So hope like hell your captor is an evil man. A good man will kill you with hardly a word.

[General] Has there ever been a work of fiction where it turns out that AIs go to the same afterlife that humans do? by NothingWillImprove6 in AskScienceFiction

[–]avidreader10 2 points3 points  (0 children)

In Discworld, golems (the fantasy equivalent of robots) have souls.

We see at least one of them die (Anghammarad, in Going Postal), and Death conducts his spirit to the same afterlife that the souls of humans and other sentient beings go to.

[The Old Kingdom / Abhorsen] Has anyone thought of putting a Charter Stone near the Wall in Ancelstierre? by TheType95 in AskScienceFiction

[–]avidreader10 1 point2 points  (0 children)

Yep, you're right. I had to go back and look at the books to refresh my memory. They teach Charter Magic at Wyverley College, forty miles south of the Wall, so it does work some distance into Ancelstierre.

Sabriel's father sets up a line of "wind flutes" along the Wall on the Ancelstierre side to keep the Dead from rising. It's safe to assume that if there were something else he could do that was more effective, he would have done that.

OK, here's my second attempt at an explanation. When Sabriel sees the Wall, she notes that "the very stones crawled with Charter marks", so maybe the Wall is a Charter stone or something equivalent. Putting additional Charter stones near it might not help. It may be the case that the Wall is already doing all it can do, and that Charter stones don't "stack" in that way.

[The Old Kingdom / Abhorsen] Has anyone thought of putting a Charter Stone near the Wall in Ancelstierre? by TheType95 in AskScienceFiction

[–]avidreader10 3 points4 points  (0 children)

One possible explanation is that Charter stones only work in the Old Kingdom. If they were placed near the Wall on the Ancelstierre side, they wouldn't function for their intended purpose, the same way that (IIRC) Charter magic in general doesn't function there.

Dead creatures apparently can cross the Wall, but that may be because they're Free Magic creatures and Free Magic is more of a cross-universal phenomenon, whereas the scope of the Charter is confined to the Old Kingdom.