Skip to main content
Robert Rapplean's user avatar
Robert Rapplean's user avatar
Robert Rapplean's user avatar
Robert Rapplean
  • Member for 2 years, 1 month
  • Last seen this week
0 votes

Avoiding time travel or causality stuff

0 votes

Is it possible for a moon to have a river flowing across one giant continent?

0 votes

How does Santa afford the materials to make the toys?

0 votes

What could make the technology to be conserved at the level of mid-late 21th century for centuries?

0 votes

Would an XNA based organism be immune to all pathogens?

0 votes

How could an iron planet be geologically active?

0 votes

What factors would determine the behaviors of post-scarcity society?

0 votes

Stabilizing a McKendree Cylinder Habitat

0 votes

What's the ideal spot on Earth for a planned city?

0 votes

What would a battle between supercomputers be like with the battleground being the internet?

0 votes

Human brain as fluidic computing tubes

0 votes

How long would it take an isolated population to develop into its own ethnicity?

0 votes

What would a society without cryptography look like?

0 votes

Which Planets of my Galaxy Would Have the Most and Least Developed Economies?

0 votes

In a capitalist society where automation has made the value of human labour worthless. What would keep the rich from just killing off the poor?

0 votes

How do we create an interstellar communications system?

0 votes

Is it more efficient to launch a spaceplane from a space elevator to a destination on the planet, or to simply fly the plane through the atmosphere?

0 votes

Quantum Entanglement (FTL Comms)

0 votes

Under what conditions would a cybercommunist nation form?

0 votes

Are there radio systems that allow people to talk simultaneously?

0 votes

Could penguins evolve to have fingers?

0 votes

Would time travel to bring someone from the past to the future be possible? Without creating paradoxes or other impediments?

0 votes

What does the view outside my ship traveling at light speed look like?

0 votes

Can my aliens develop their medical science, in spite of their strict ethics?

0 votes

What should an inactive planet's topography be for nutrient circulation?

0 votes

What would happen to nuclear missiles left to rot post-apocalypse?

0 votes

How would defense tactics change if 10% of people could fly?

0 votes

How would an adult artificial human behave after they exit the biofabricator?

0 votes

How do I determine the locations and strength of earthquakes using a fictional tectonic plate arrangement?

-1 votes

Powering a fixed-wing aircraft in the upper Venusian atmosphere

1
8 9 10
11
12