Nearly a decade ago, I declared, “Lifelogging is dead,” adding “For now.” Lifelogging is an unfashionable word. But its central idea — using computers as prosthetic memory to remember everything — is appealing. The idea is 80 years old. In a 1945 Atlantic article, Vannevar Bush proposed a memory machine called a Memex. Bush was an American engineer, inventor, and science administrator










