Modern Physics as Strange Physics as Crisis Physics

Modern physics is in a state of crisis, and we conclude from Leibniz' Principle of Sufficient Reason that the crisis must have some background. Modern physics can be described as being strange as compared to classical physics being rational with the shift taking place in the beginning of the 20th century.  

Strangeness was first introduced into modern physics by Einstein in 1905 in his Special Theory of Relativity SR presenting strange effects of time dilation, space contraction and relativistic mass leaving classical physicists aghast from solid experience of Newton's and Maxwell's physics.

Einstein based SR on the following Postulates

• Physical laws take the same form in all inertial coordinate systems.
• The speed of light is the same in all inertial coordinate systems. 

From these two Postulates Einstein derived the Lorentz transformation between space-time coordinates $(x,t)$ and $(x^\prime , t^\prime )$ of two inertial coordinate systems moving with respect to each other. Einstein then derived the strange effects of time dilation, space contraction and relativistic form of Newton's Law with relativistic mass.

To derive the Lorentz transformation (already derived by Lorentz without giving it any physical meaning) Einstein's started considering the following "thought experiment":

• Two light pulses are emitted by two light sources flashing at coordinate $(0,0)$ of two moving inertial systems in which the resulting light pulses are described by $x=t$ and $x^\prime =t^\prime $ in each system.  (TE) 

In this experiment Einstein thought of a "flash" to be an event described by the coordinates $(0,0)$ without any real physics attached to the event. The idea of "event" without physics uniquely described by a space-time coordinate like $(0,0)$ was new as subject of the "thought experiment".

Having formulated TE in his thought, Einstein then argued:

1. The two light pulses are the same light pulse since the "flash event" = $(0,0)$ is the same in both systems.
2. Since the light pulses are the same light pulse, only viewed in two different inertial systems, there must be a relation between the coordinates, which shows to be the Lorentz transformation.     

The key is here 1. Is it correct to conclude that the pulses are the same because the light sources happen to coincide in space when they flash? If they happened to flash at different points nobody would expect them to be the same.

Of course not, if you replace "thought experiment" by physical experiment. A physical flash has duration in space and time in a coordinate system attached to the flashing device. If two flashing devices moving with respects to each other happen to both flash when they meet, it does not mean that they give the same flash and so cannot be connected by a Lorentz transformation.

Einstein's conclusion that the light signals are the same light signal described in two different coordinate systems, is thus without physical meaning. It is then not strange at all that Einstein can derive strange new effects which are "thought effects" and not "physical effects".

A correct conclusion of Einstein's experiment as real experiment can be inspected as Many-Minds Relativity which is not strange at all.

The strangeness of modern physics as root to its crisis was thus introduced by Einstein in SR as a thought experiment without real physics only strange physics. Of course all sorts of "strange thoughts" should be viewed with suspicion in particular in science. A reasonable thought is not strange. Physics must reasonable to exist. The step from black magic to science was taken using reason as guiding principle. There is no reason to go back to strange magic fostered by strange thoughts.

But the strangeness of SR was soon overpowered by General Relativity and Quantum Mechanics into strange physics "nobody understands" according to famous leading modern physicist Richard Feynman.