Postscript #122 to the "Lanzarote" paper (11/09/98)
'FAQ' #5 ON "RHYTHM BASED COMMUNICATION"

Isn't time a measured interval between two events?
And if so what then is ‘Now Time?'

     'Past time' is indeed a measured interval between events! An event occurs in space-time; that is it can be described by three spacial coordinates often referred to as three orthogonal 'spacial dimensions' (postscript #121), and one time coordinate (not a spacial dimension). Or, it can be alternatively described by a symbol such as (x, y, z, t). Another event, occurring in the same inertial coordinate system, can likewise be described by a symbol such as (x', y', z', t'). Conventional time, between these two events, is clearly defined in physics as the difference between t and t'. In one's 'past,' the time coordinates are labels (associated with energy or mass vectors), referred to as 'timetags' (postscript #109). Timetag differences define 'past time.' In one's 'future,' invented time coordinates are also timetags. Their differences define 'future time.' 
     'Now Time' exists as real and definable. It bridges past time and future time and may act as a 'hinge' of symmetry. Events falling inside one's ‘Event-Space Sphere' are perceived as occurring in the 'present;' they are in one's Now Time. A useful definition of Now Time is open for a consensus among theoretical biophysicists but two predominant concepts are emerging. The first (postscript #112), gives the measured time difference for energy (which creates a present sensation) to enter and then to leave one's Event-Space Sphere. We call this 'External Now Time' (ENT).The second, which we call 'Internal Now Time' (INT), depends on the understanding of 'Rhythm Based Time,' RBT, as follows. 
      RBT is orthogonal to conventional time (postscripts #104 and #'s 1-121). It is 'always-in-the present' and thus must be measured on or within one's 'ENT Event-Space Sphere.' Correct, complete names for the four 'windows' of RBT (diagram, postscript #112) could be 'On Time INT,' 'Late INT,' 'Off Time INT,' and 'Early INT.' These names do not represent contradiction. Organisms can perceive 'Late' and 'Early' RBT events in their conceived present. But by definition, this must always be in the present 'cycle' of their Rhythm Based Time. Then, the maximum measurement of Internal Now Time becomes Einstein's "reading on a clock" (which clock is placed inside one's Event-Space Sphere) for the time of one cycle of RBT! 
     Whichever of these two concepts of Now Time is the largest for a particular situation should be applied. This is because all time intervals, measured from one's Event-Space Sphere origin, and shorter than the largest conceived Now Time interval for an organism, are defined to be also in the organism's present. As examples: A) if two calm humans each have synchronized 'alpha rhythms' of one heart beat per second, and signal with words traversing the radius of their Event-Space Spheres in one millisecond (0.001 seconds), then their Now Time would be the larger of one second (their INT) or, their ENT of two milliseconds (use diameter, under concept one), and B) if two hummingbirds each have alpha rhythms of one wing beat per 20 milliseconds and signal with scents traversing the radius of their Event-Space Spheres in one half second, then their Now Time would be the larger of 20 milliseconds (their INT) or one second (their ENT).  In case A) we use the time of one cycle of the RBT alpha rhythm; in case B) we use the sphere diameter divided by the average velocity of the energy, creating the received sensation in a hummingbird, which is always located at the center of its Event-Space Sphere (postscript #112).