Ramblings & ephemera

50 years of change due to senior citizens

From Charles C. Mann’s “The Coming Death Shortage” (The Atlantic: 1 May 2005): The twentieth-century jump in life expectancy transformed society. Fifty years ago senior citizens were not a force in electoral politics. Now the AARP is widely said to be the most powerful organization in Washington. Medicare, Social Security, retirement, Alzheimer’s, snowbird economies, the […]

Bruce Schneier on steganography

From Bruce Schneier’s “Steganography: Truths and Fictions“: Steganography is the science of hiding messages in messages. … In the computer world, it has come to mean hiding secret messages in graphics, pictures, movies, or sounds. … The point of steganography is to hide the existence of the message, to hide the fact that the parties […]