Thought Experiments and Science Writing

            Here is a quote from Einstein regarding the time dilation and the twin paradox: "For the moving organism, the lengthy time of the journey was a mere instant, provided the motion took place with approximately the speed of light". [Source: according to Kim Dara, Kimsoft, Inc.]  I find such a statement to be absurd. To stipulate "approximately the speed of light" would be humorous were it not for the fact that such a statement is proposed within science writing. Neither the twin paradox example nor the cited stipulation have anything to do with how matter-energy behaves.
            A thought experiment in physics (Gedankenexperiment) when based upon an absurdity has nothing to do with the physics of matter-energy in spacetime/motion. There are numerous examples of baseless thought experiments as they are generally called. For example, there is the ladder paradox, "a ladder moving at high speed through a garage". Ladders do not move on their own or otherwise at high speed or at any speed through garages. Then, there is the famous twin paradox involving a spacecraft. One twin is stationary and the other moving at a high speed; the former grows old while the latter remains young. This so-called paradox may be reasoned for an infinite number of matter-energy events/objects, as all forms of matter-energy experience the aging process known as time.
Then, there is the thought experiment about a train and its platform with two people. One individual rides the train, while the other remains on the platform, and a discussion ensues about who observes|sees what. A similar example concerns two clocks, one on an airplane and the other left behind on Earth.  All of these so-called thought experiments are glaringly similar. If these thought experiments actually reflect laws of matter-energy, then they must hold for any matter-energy event, and not for only the ones specified.
            In fact, these thoughts experiments are essentially one and the same scenario only with variations:

            Two people (twins)                |           Spacecraft       |           Surface/Earth
            Two people                            |           Train               |           Platform
            Two clocks                             |           Airplane          |           Surface/Earth 
            Two observers (A & B)          |           System k         |           System K

            Any two mass phenomena could be singled out for an analysis of this nature, the relationship between the two under certain stipulated conditions. The most significant point in my mind about these cited thought experiments is that they treat the minimal relationship of matter-energy: two material subjects. One spatial subject/event in relationship to another spatial subject/event, with both in relationship to time and motion, and then both are related to other objects/events, generally observed by human beings.

            Two people (twins)                |           Spacecraft       |           Surface/Earth
                                                                       (one individual           (one individual
                                                                       in empty space                       on Earth itself
                                                                       in motion)                   stationary, at rest)      

            Two people                            |           Train               |           Platform
                                                                       (one individual           (one individual
                                                                       on the train                 standing on platform
                                                                       in motion)                   stationary, at rest])

            Two clocks                             |           Airplane          |           Surface/Earth
                                                                       (one clock                   (one clock
                                                                       on the plane                on Earth itself
                                                                       in motion)                   stationary at rest)

            Two observers (A & B)          |           System k         |           System K
                                                                       (one individual           (one individual
                                                                       placement                   placement
                                                                       in motion)                 stationary, at rest)

            The two individuals/clocks/events are at relative rest and/or in relative motion to one another in different spatial coordinates (3 dimensions) at a simultaneous time. Given the known fact that all matter-energy events in spacetime/motion are in motion, then the concept of at rest and/or stationary are in relation to other spacetime/motion events.
            There is essentially no need to vary the examples in the thought experiments for special relativity. For each example of the thought experiment offered by Einstein is the same example, representing the same physical laws. By offering different scenarios for the same laws, confusion obtains with the variations. By way of Einstein's own definitions, all spatial subjects cited in the thought experiments reflect the same laws of time and motion. One could substitute any of the subjects (system, spacecraft, train, clock, elevator) in any of the scenarios and the consequences and conclusions are essentially the same/similar.
"Einstein's approach was based on thought experiments, calculations, and the principle of relativity, which is the notion that all physical laws should appear the same (that is, take the same basic form) to all inertial observers." ["Relativity of Simultaneity",]

The laws of spacetime/motion are relationally the same for all spacetime/motion events.

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