Theories containing absurdities are doomed, but if the absurdity is too great, an idiocy, critics are paralyzed and the idiocy reigns supreme.
In 1918 Einstein informed the gullible world that, as the traveling clock (twin) turns around and experiences acceleration, a HOMOGENEOUS GRAVITATIONAL FIELD emerges. This homogeneous gravitational field somehow affects the distant stay-at-home clock and makes it run very fast (which means that the stay-at-home twin suddenly gets very old) during the turning-around period:
Albert Einstein 1918: "A homogeneous gravitational field appears, that is directed towards the positive x-axis. Clock U1 is accelerated in the direction of the positive x-axis until it has reached the velocity v, then the gravitational field disappears again. An external force, acting upon U2 in the negative direction of the x-axis prevents U2 from being set in motion by the gravitational field. [...] According to the general theory of relativity, a clock will go faster the higher the gravitational potential of the location where it is located, and during partial process 3 U2 happens to be located at a higher gravitational potential than U1. The calculation shows that this speeding ahead constitutes exactly twice as much as the lagging behind during the partial processes 2 and 4."
http://sciliterature.50webs.com/Dialog.htm
A modern version of the 1918 idiocy (the "homogeneous gravitational field" is transformed into "enough strangeness"):
David Morin, Introduction to Classical Mechanics With Problems and Solutions, Chapter 11, p. 14: "Twin A stays on the earth, while twin B flies quickly to a distant star and back. [...] For the entire outward and return parts of the trip, B does observe A's clock running slow, but enough strangeness occurs during the turning-around period to make A end up older. Note, however, that a discussion of acceleration is not required to quantitatively understand the paradox..."
http://www.people.fas.harvard.edu/~djmorin/chap11..pdf
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