LETTERS ABOUT the December 2005 issue included a down-to-earth query about unearthly black holes for the authors of "An Echo of Black Holes," Theodore A. Jacobson and Re¿naud Parentani, and a report of research data complementing Darold A. Treffert and Daniel D. Christensen's anatomical exploration of savant Kim Peek, "Inside the Mind of a Savant." Responding to "Running on Empty" [SA Perspectives], letter writers pitched ideas on how the U.S. can kick its oil "addiction" (the now presidentially sanctioned term).
As a holiday treat, readers (savant and nonsavant alike) were invited to test their recollection of the year's articles when they took on Patrick Merrell's "Wormhole" puzzle. Apparently they appreciated the challenge, for there was not a cross word about it. In fact, Mike Abbott via e-mail suggested with alacrity: "Great crossword puzzle--do it again!"