Activity for overactor
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
How far could life develop inside a black hole before it explodes? Apparently it is theoretically possible for a planet to achieve a stable orbit around the singularity at the centre of a black hole within the event horizon. This means that life could hypothetically form inside a (presumably supermassive) black hole. There are obviously many problems with this, but... (more) |
— | about 9 years ago |
| Question | — |
How big can a space empire get? In a world where travel is limited to the speed of light, reaching a different star, while not necessarily impossible, would be very time consuming. For an empire stretching across several solar systems, which has a centralized source of political power, this would pose a huge problem. So here is my... (more) |
— | about 9 years ago |
| Question | — |
Can I keep our universe, but without the speed limit (of light)? It seems like nothing can move faster than light and this is quite bothersome for interstellar travel. It takes decades in the best case to get anywhere interesting in our little Milkyway (Many thousands of years to travel an appreciable distance within it) and unless we find some loopholes traveling... (more) |
— | over 9 years ago |
| Question | — |
What could cause an avian species to become intelligent? There have been a few questions about an intelligent avian species lately and they have gotten me thinking. It seems to me that it would be hard for an avian species to evolve to be more intelligent past a certain point. The main problem being that I can't imagine the immediate benefits of being mor... (more) |
— | over 9 years ago |
| Question | — |
What proof could Ragnarök leave behind? Ragnarök is the Norse rendition of the apocalypse. A major event during this apocalypse is Fernir devouring the sun. If we assume that the sun and all of its influence disappear entirely for 3 days, this could have serious effects on the environment. Another side effect of Ragnarök for the purpose... (more) |
— | over 9 years ago |
| Question | — |
Could a disaster kill all (human) life on Earth but leave astronauts in low orbit alive long enough to return? There are plenty of threats out there that could terminate all life on our little planet in varying amounts of time (Solar flares, meteors and supernovas to name a few). Are there any disasters that could kill all (intelligent) life on Earth but leave astronauts in low orbit alive for long enough to... (more) |
— | over 9 years ago |
| Question | — |
Could fictional species benefit from limited inbreeding? There are quite a few known drawbacks to incest. However, incest can be helpful when trying to help a desired trait spread. Incest does happen in nature to some degree but it's not exactly actively sought out. How (if at all) could selective incest become a beneficial part of the development of a s... (more) |
— | over 9 years ago |
| Question | — |
Could life form in outer space? All life we know of to date (presumably) formed on a rocky planet (more precisely: earth). Fiction has been written about life in more exotic locations. Though as far as I know, these lifeforms were always on the surface or in the atmosphere of some large(ish) celestial body. How can I scientificall... (more) |
— | over 9 years ago |
| Question | — |
Social implications of intelligent species that practices external fertilization Some species that reproduce sexually, don't actually have sex as such. Instead the female might lay soft scaled eggs, which the male then fertilizes extrenally. I want to know what a society of an intelligent species that lays lots of eggs and fertilizes those externally might look like. Lets say th... (more) |
— | over 9 years ago |
| Question | — |
How do I prevent my turtle from collapsing under its own gravity? Suppose the universe contained a species of planet sized turtles1 that can travers at least interstellar space. How can I explain (without invoking magic) that these turtles are not spherical? If this is not possible within the laws of physics as they are, what can be changed minimally about them (t... (more) |
— | over 9 years ago |
| Question | — |
What is the soonest we could possibly have a self-sufficient base on Mars? I'm interested in writing a story about inhabitants of a permanent base on Mars, a few decades after all life on earth has (presumably) been wiped out. Preferably, I'd like them to still be there, be it with a major setback in technology. In the interest of keeping the community on Mars more relatab... (more) |
— | over 9 years ago |