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For questions that ask if a given concept is consistent, or being used consistently, in the context of the referenced world rules. Answers should say yes or no, with supporting info. This tag should not be used with the science-based, hard-science, or science-fiction tags. Comparisons to the real world should use the science-based tag. This tag may not be used alone. This tag may not be used with the science-fiction, science-based, or hard-science tags.

6 votes

How can Santa keep his lists when the GDPR is around?

Santa exists in a parallel world where this law doesn't apply. Children in our world who believe that Santa exists have identical copies in worlds where Santa does exist. If we give them a present and …
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9 votes

Is it possible to film the meteorite impact that led to dinosaurs extinction?

As Jay Melosh points out here, the fireball will incinerate everything within a 1000 mile radius (which is the distance from where the fireball is above the horizon). The temperature of the fireball i …
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7 votes

What could prevent a sentient species from going to space?

Let's consider that of the 200,000 years that we've been around here, we only have been capable of launching satellites during the last 59 years. The fundamental issue here is that a technological soc …
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1 vote

How can I scientifically explain the afterlife

You can consider each instant of time as a new Universe, so each instant of your existence is the afterlife of the previous instances. Fundamentally, we're all just algorithms. At every computational …
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1 vote

Could medieval atheist king end religious dominance?

The king knows that the entire population has been indoctrinated and any attempts to openly try to re-educate the population will lead to his palace being stormed and he'll be burned at the Stake. Thi …
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5 votes
2 answers
239 views

Can spiders be used like spy drones using brain implants using current technology?

You can imagine doing surgery on the brains of insects or spiders to implant electronic devices and transmitters so that it becomes a drone and will transmit data. To gain intelligence on a target of …
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1 vote

With current technology, genetically modified virus able to end mankind

What you need are so-called two-stage bioweapons, they are not only possible but it's very likely that Russia, China, North Korea and other countries are already busy working on obtaining such weapons …
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2 votes

How does the government cover up alien crash landings?

The government can present this as a crash of a secret experimental plane. They can say that some people died. They can let false witnesses tell false stories about the incident, also agents can prete …
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3 votes

How can I poison humans over several generations?

Introduce right handed microbes in the Earth's environment that will produce the mirror version of a chemical compound that is critical for some biological function and such that this mirror form will …
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1 vote

Would it be possible for hunter gatherers to accidentally colonize an exoplanet, from an ast...

As shown here, it won't work all that well. To be launched into space you need a massive impact. An impact smaller than the KT impact that wiped out the dinosaurs would not be sufficient to launch eje …
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3 votes

Larger moon = Larger Tides = No oceanic ships?

It would not only disrupt shipping but everything else needed to run a modern civilization. If the Moon were as close to the Earth when it formed, about ten times closer, the tides would be about a th …
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6 votes

Gravitational slingshots: could they be used to decelerate a spacecraft traveling at a small...

Since you're traveling at speeds far higher than the escape velocity of the solar system relative to a point close to the star, you are not going to be able to stop within the solar system. Instead, y …
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2 votes

Protection against h-bomb core explosion conditions thinkable?

To survive this, you must be an AI who constantly uploads the latest version of his brain contents to a remotely located machine. The explosion will instantly vaporize you, but once the uploads stop, …
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-3 votes
3 answers
380 views

Preventing dumb self-replicating machines to take over the humanity and potential case for t... [duplicate]

It could be that the solution to the Fermi paradox is that civilizations of biological creatures are typically destroyed due to being taken over by machines that are much dumber than the original biol …
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