But perhaps it will be possible to deduce even more from such a theory in future: after all, the on-going increase of entropy in nature is one of the most important results of the classical theory. The world of elementary particles, however, appears to be a world of ultimate order and harmony, a world of self-interaction (rather than a diffuse image of a “random”, “probable” and impenetrable thicket). This world does not know any kind of disorder and therefore all the systems that are predominantly composed of systems of self-interaction must feature a continuously decreasing entropy. This could be the theory of Darwin (the origin of life and the development of all biological systems from low to high). Accordingly, nature is not only causal but presumably also symmetric; maybe there is such an organizing principle being effective even in the vast expanse of the universe controlling the formation of fixed stars? At this point we do not dare to make presumptions but nevertheless it should be asked if perhaps such an organizing principle balances out the predicted “heat death”?

One thing, however, is extremely depressing: we have not even been able to roughly answer our initial question and still face the big mystery: what actually is a photon, how is it formed and how does it cease to be?

But it is just this question which brought us such a lot of small pleasures along our journey of exploration that we should not leave without seriously trying to answer it to some extent. Thus we continue our efforts once more:

These efforts finally culminate in an aforementioned extension of the magnetic field theorem. Therefore, we will now have a look at the figure shown above: a negative charge follows a space curve that satisfies the magnetic field theorem in the direction of the arrow (Fig. 45). Then the north pole of the magnetic field is found in the direction of the arrow according to the “right-hand rule”. Now, let a positive charge travel in the same direction (Fig. 46). The north pole then must be be in the opposite direction. We see that the “left-hand rule” has been designed for the positive charge. Consequently, positive charges generate space eddies that are assigned to a left-hand coordinate system, whereas negative charges generate space eddies that are assigned to a right-hand coordinate system.