General Comments: A Thought Experiment

            Let's do a thought experiment, a word-concept and practice in science that was so popular during the nineteenth century.
            Let us apply the reasoning used today to analyze superluminal velocities to the different known velocities of matter-energy in the past.
            Each scenario of the thought experiment requires three people, two hills/mountains, and some kind of weapon.
            There are two people on a hilltop, one standing next to a person holding a rock. The third person is on the other hilltop. The person with the rock is getting ready to throw the rock at the person on the other hilltop, so the person standing next to him yells out to the person on the other hilltop to duck down so that he does not get hit by the rock. The person hears the warning and ducks and the rock misses its mark. The speed of sound is faster than the flight of the stone.
            The same scenario occurs again, some time later, when the armed person now has a bow and arrow. The person calls out to the other person on the other hilltop to duck down just as the armed person lets the arrow fly, and the person hears the verbal warning and ducks. The arrow misses, for it flies just below the speed of sound. Now, the person issuing the warning concludes if ever anything is invented that travels faster than a person's warning voice then we are all dead, this would be the end of the world. No one could exist with anything that travels faster than a warning.
            That same scenario occurs after the invention of gunpowder and the invention of firearms with bullets. This time, the person lets out a warning to the other person on the hilltop to duck down just as the armed person with a firearm pulls the trigger and then the person on the hilltop drops down wounded. A few seconds later the wounded person heard the warning and the report of the gunshot. That particular bullet traveled twice the speed of sound. Now, the person issuing the warning concludes if ever anything is invented that travels faster than a bullet, then we are all dead, this would be the end of the world. No one could exist with anything that travels faster than a bullet. It would be like traveling ahead of time itself, getting a message to the person on the other hilltop to duck before the bullet were to arrive.
            Now, someone invented a lantern with shutters on it, one of which the person standing next to the person with the firearm had. As soon as the person pulled the trigger on the firearm, the person with the lantern raised the shutter to let a light signal travel to the person on the other hilltop, previously agreed that that light signal would mean "duck down". The person ducked down as soon as he saw the light signal and the bullet whizzed overhead a couple of seconds later. Now, the person issuing the warning concluded that time itself had been robbed of death, the warning beat out the speed of the bullet. People are saved, the world will not end. But, if ever any kind of weapon is invented that travels faster than a bullet, then we are all dead, this would be the end of the world. No one could exist with a weapon that travels faster than the warning light.
            Now, someone came along and invented a laser weapon, one of which the armed person on the hilltop had. And the people issuing the warning also had a laser pointer to be able to warn the person on the other hilltop. As soon as the person let out a warning with the laser pointer, the person armed with the laser gun flipped the switch on the laser weapon. The person on the other hilltop was singed in a nanosecond, seeing both the laser pointer and the laser weapon's light at the same time, with both hitting him at the same instant. Now, the person issuing the laser warning concluded that there was no way to send out a warning that would be faster than the light of the laser weapon. Nothing travels faster than light. And, if it did, then we would all perish because life itself would be at risk, our very existence. If ever anything is invented that travels faster than a laser light maybe we could be saved, warned in time to duck before the laser hit. But an irony exists to this situation. If anything travels faster than light, we could possibly turn the laser beam back in time. This might avoid traveling back in time and/or even ahead of time itself, thus getting a message to the person on the other hilltop to duck before the laser weapon's light were to arrive; or, cause it never to arrive.
            When the person with the laser pointer stopped talking, the person with the laser weapon looked at him and asked, "What have you been smoking?"
            In this thought experiment, the warning device and the weapon system may be substituted for others that have existed throughout human history in order to draw similar analogies. In the end, I believe, it will be shown that velocity, speed of the warning and weaponry systems do not alter the conditions of existence of all of spacetime/motion, as it is purported with regard to superluminal velocities.
            So, if something were to travel faster than light, to beat out the purported maximum speed of color, of electromagnetic light waves, say gamma rays, very destructive radiation waves, then obviously no one could be forewarned of their existence. Those deadly faster-than-light radiation waves would arrive before anyone with a laser pointer could forewarn the person receiving those waves.
            There are three people. One on a hilltop far away waiting to be warned about an incoming radiation wave [possibly faster-than-light gamma rays]. There are two other people, one has a laser pointer ready to warn that person to duck as soon as the FTL gamma ray weapon is activated. The person with the gamma-ray weapon and the person with the laser pointer activate their devices at the same time. The person on the hilltop falls down before the laser point dot hits him.
            It's not the end of the Universe, but it might be the end of that person.
            This might be the reality human beings would face if scientists were able to control the FTL phase velocities of light. A scary picture, because somehow human beings think destructive weaponry before helpful medical devices.
            The thought experiment probably tells us more about human beings than about physics. This is why this particular thought experiment is so easy to understand. Imagine had I used a medical setting to cure someone for the scenarios in the thought experiment…boring. Now we know more about us, than about physics.
            So, light waves with different frequencies and different wavelengths. So, electromagnetic light waves, with different particle-wavepaths of energy in terms of cycles|time, do not overlap, do not cause interference among themselves, but rather each one is assured of arriving at its destination simultaenously with all of the other electromagnetic light waves.

The different lanes of travel may be viewed when daylight is run through a prism and the colored light beam that emerges from the prism shows the different tracks, lanes upon which each one travels.

©2014 Copyrighted. Charles William Johnson. All rights reserved.