I just read your paper on the Doomsday Argument (not as closely as I should
have). I am intrigued by the reference class "people who know their
approximate place in human history". There was nobody in this reference
class before the last century. Perhaps this implies that with 90%
probability, everyone will forget their history sometime between 2010 and
3000 AD. Could some combination of a Singularity and interstellar migration
render the past infomationally inaccessible, and convince most people that
the human race endures from everlasting to everlasting?
--Carl Feynman