The portion of the video in Post #1 shows the two people on the right with their eyes close, maybe while they are blinking . . . like they could be talking in their sleep, so they could make such a mistake.
May be they just are not educated much in science. I would say twice the speed on light is technologically not possible for humans > not physically, not economically because of the cost of research, and humans would not be able to cooperate well enough with each other. Plus, accelerating too fast could kill the pilot; how long might it take, then, to reach twice the speed of light, without killing the pilot during the acceleration? Could that take longer than the lifespan of a human??
After all, there are limits to how fast a pilot is able to adjust to changes in speed and direction. The technology in the plane might be able to do some pretty fancy maneuvers, but in order to keep the pilot alive and functional, the technology would need to not change speed or direction too quickly.
Also, if a plane could move at twice the speed of light, would ground-sent radio messages be able to catch up with the plane, in time for those messages to have their effect in time? Do radio messages travel faster or slower than light? Have fun.
Plus, there could be momentum issues, so that a really high-speed jet might become too predictable at higher speeds. Or, in a dogfight maybe a slow plane could outmaneuver a very fast-moving jet. Plus, in a split second, how many times would it be able to fly around the earth? Its inertia at such a speed would take it off into space, I would say, before it could get very far for even one pass attempt around the earth.
But we can think it