Tony Hoare called null references his "billion dollar mistake": http://www.infoq.com/presentations/Null-References-The-Billion-Dollar-Mistake-Tony-Hoare http://

Tony Hoare called null references his "billion dollar mistake": http://www.infoq.com/presentations/Null-References-The-Billion-Dollar-Mistake-Tony-Hoare http://www.infoq.com/presentations/Null-References-The-Billi....