<p>Quantum approaches to consciousness seem to explain several but not all
observations in the field of mind-brain interaction. Information is introduced
as a key to a wider world view since we have – according to
Thomas Nagel –<i> to transcend the built-in limits of contemporary scientific
orthodoxy </i>before we may <i>understand mind</i>. In the macroscopic world
information is limited in contrast to the capability of our mind to work with
unlimited information in mathematics. The world of mathematical concepts with
unlimited information is independent of time and space and the mind is an
intermediary between the macroscopic and the mathematical world. In the
macroscopic world time is unidirectional while for the mind as well as in quantum
physics time is bidirectional. In a given experimental system a photon carries 1
bit of information. Using a double slit gedankenexperiment it is shown that the
transmission of the information from the photon to the detector takes the time
span delta t = λ/c and Planck’s formula
for the energy of the photon can be interpreted as Planck’s constant h multiplied by the elementary information flux (1bit) c/λ. The time span was
determined by an observer in the macroscopic world. For the photon, however, time does not flow and space is shrunk to zero. For
the discussion of time in quantum physical
measurements these two viewpoints have to be distinguished. We may describe
the photon as the elementary information unit in a world independent of time
and space. The world of the photon is evidence for the existence of the world of
mathematical concepts which is independent of time and space. When the information is transmitted
from the world of the photon to the world of the detector it is absorbed and the loss of
1 bit information causes an increase of energy in the system. For complex information
the hypothesis of an extended energy conservation law is formulated. An experimental
test of the hypothetical equivalence of energy and information flux is necessary
as a next step on the way which could lead to a better understanding of
consciousness as well as to a quantitative theory of information.</p>