The twin paradox of the special theory of relativity has given rize to a large body of literature
discussing its implications. In its standard form, the traveler changes velocity only at the
destination of the trip, so that he appears to perceive an improbably instantaneous and
non-continuous change in age of the stationary twin. In this work, a smooth velocity/acceleration
profile is used that allows the abrupt velocity-change case as a limit. All gravitational effects
are ignored in this treatment. Aside from mutual perception of simultaneous clock times in an
accelerating frame, constant communication of clock times between the twins by means of (digital)
light signals is shown to be possible, in principle if not in practice.