Hi Stefan,

The relationship between EM and QM equations is a good question, and very non-trivial. Certainly, a person truly

interested in understanding Nature cannot accept the "shut up and calculate" mentality.

Several people tried to establish the link between Maxwell and Dirac equations. You can search the literature for

"optical Dirac equation" for instance. It's not easy to show how Maxwell equation leads to the Dirac equation,

otherwise it would be in textbooks already. But it's one of the most important basic questions, in my view.

In chapter 2, we show that the Dirac equation is the same as the Klein-Gordon equation. In chapter 4, we show that

the Klein-Gordon equation is the same as the Proca equation. These are three faces of the same equation, yet most

physicists consider them to apply to different kinds of particles. The problem is not with the equations, but with

understanding their meaning and correct application to elementary particles.

For instance, "i" is just treated as imaginary complex number in QM, without ever explaining what the imaginary values

physically mean. We show that "i" of QM is the Clifford pseudo-scalar which we get by multiplying unit vectors:

e_t*e_x*e_y*e_z. Understanding the correct geometry is the first step towards understanding what the equations mean.

We make the first steps to derive the Dirac equation from Maxwell equation, but some points remain open. In the 2nd

edition of the book, we plan to present the complete derivation of QM equations from EM equations.

Regarding Wyttenbach's and Zephir's comments: obviously neither of you looked into the book.

A wise person would not make dogmatic statements without first reading and understanding the authors' work.

Especially not in a thread which is catering to those who are interested to understand this topic.

Even more so when you have never yet written down a physical equation which is predictive, and not just numerology.

The reason I am mentioning this is not for being mean to you, but to point out that your activity reduces my

motivation to participate in this forum.

Best regards,

Andras