A Practical and Easy Test To Demonstrate the Effect of Hindsight

Step 1: Sit a person down in front of your TV

Step 2: Insert "The Sixth Sense" into your DVD player

Step 3: Tell the person that Bruce Willis dies during an attack and spends the remainder of the movie as a ghost

Step 4: Press play

(credit: Xenia Kobylarz, IP Law & Business)

Hang on to your seats - KSR v. Teleflex is on the way . . .