:Black holes and spaceships. :You do not need to travel at the speed of light to escape a black hole. The event horizon is for a particle or body moving at a particular velocity and does not include any theory concerning a body that is accelerating. :The size of the black hole is very relevant. The event horizon is merely a boundary in space around a mass. The larger the mass, the greater the diameter of the event horizon. The greater the diameter of the event horizon, the less the gravitational pull at the event horizon. :Look at it this way. Define a point in space that requires an escape velocity of 1km per second from both the earth and the sun. Which one will you hit first if you don't accelerate. The earth, because at that location the earths pull will be far greater than the suns. :Look at it this way!! Sat on earth, which has the greater escape velocity, the sun or the earth. The sun. And which has the greatest pull on your feet? The earth.