Comment Re:extracting "fuel" from the very fabric of space (Score 1) 518
If we could accelerate to relativistic velocity, the only other things stopping us might be relativistic dust specks, each and every one of which is now a bomb. For reference, see what could have been a deadly ding to the window of the Space Shuttle. If the object was larger, it might have penetrated. IIRC, it was thought to be caused by a paint chip. Velocity? Nowhere near relativistic.