What have you changed your mind about? Why? - the latest installment of The Edge Annual Question
posted on Dec 31, 2007 - View this thread

Science explores 125 big questions that face scientific inquiry over the next quarter-century. [via]
posted on Jun 30, 2005 - View this thread

Notes & Queries - questions that only fools and geniuses would dream of.
posted on May 13, 2005 - View this thread