And why wouldn’t it be? If distance is relative and time is relative than the idea of combining distance over time into a universal constant seems as Biden would put it as malarkey. Eventually the scientific community will realize there are other frames of reference than the one they are performing measurements from. Even if the traveler never could measure that they are traveling faster than the speed of light why couldn’t someone performing measurements for a completely different frame of reference understand that they are traveling faster than the speed of light? Eventually we will move forward and away from the flat planet ideas we seem so adamant about holding onto.