Concrete Brings Knowledge to Bear: White Things Grab a pencil and a piece of paper and find a way to time yourself (a watch, a spouse who likes to count, etc.). Here is a do-it-yourself test on concreteness. You’ll do two brief fifteen-second exercises. When you’ve got your supplies ready, set your timer for fifteen seconds, then follow the instructions for Step 1 below. STEP 1 INSTRUCTIONS: Write down as many things that are white in color as you can think of. STOP. Reset your timer for fifteen seconds. Turn the page for the instructions for Step 2.
