In fact, the phenomenon is caused by fundamental physical constants.
No formulae for the fundamental physical constants are known to this day.
These reactions are extremely sensitive to the values of the fundamental constants.
This might also imply that the fundamental constants could be different depending on which direction we look.
Or you could interfere with the fundamental constants of physics.
However, in the case of these fundamental constants, their arbitrariness is usually explicit.
The key to the argument is a particular combination of fundamental constants, known as the 'fine structure constant'.
These four fundamental constants form the basis of the atomic units (see above).
To make matters worse, we cannot even be sure that the fundamental constants are constant.
Similar arguments can be made for the other fundamental constants.