Space is big. The Voyager probe, launched in 1977 to explore Jupiter and Saturn, took 36 years to leave the Solar System. It is the furthest human object from us, and it is still in our neighbourhood.
Even the radio waves we sent into space have barely reached a few hundred star systems, and they are but a drop in the ocean compared to the size of our galaxy (as you can see in the cover photo from this chapter). Light in a vacuum has a velocity of almost 300.000 km/s. That’s how fast information can travel through spacetime in our Universe.
Mass is not information. To accelerate anything with a specific mass you need to provide it with energy. The energy you’re providing is equivalent to a mass: it is like you’re getting more massive as you accelerate towards the speed of light, but you can’t reach it. You’d need to provide infinite energy and reach an infinite mass to travel that fast.
The Universe is big and the speed of light is small. Sci-fi writers had to come up with ways to get around it.
FTL engine and Warp Drive
People might of think this as being exclusively ...