The Beginning Norretranders, The User Illusion, 1998
"But how big was the entropy at the Planck time?"
"The question was posed at the end of the 1980s. The answer was shocking… If we regard this completely newborn universe as a black hole, its entropy -- I.e., its hidden information content -- is equal to one bit.
"the world began as something that can be described usingjust one single bit. That is the only hidden information it contains. The rest of the disorder came later. One bit is enough information to answer yes or no to a question.