  We employ the Stern-Gerlach experiment to highlight the basics of a
minimalist, non-interpretational top-down approach to quantum foundations.
Certain benefits of the here highlighted "quantum structural studies" are
detected and discussed. While the top-down approach can be described without
making any reference to the fundamental structure of a closed system, the
hidden variables theory ?a la Bohm proves to be more subtle than it is
typically regarded.
