Lay a two-by-four on the ground and walk its length without falling off. Easy, isn’t it? Now place a couple of bricks under the two-by-four, raising it off the…

Lay a two-by-four on the ground and walk its length without falling off. Easy, isn’t it? Now place a couple of bricks under the two-by-four, raising it off the…

Lay a two-by-four on the ground and walk its length without falling off. Easy, isn’t it? Now place a couple of bricks under the two-by-four, raising it off the…

Lay a two-by-four on the ground and walk its length without falling off. Easy, isn’t it? Now place a couple of bricks under the two-by-four, raising it off the…

Lay a two-by-four on the ground and walk its length without falling off. Easy, isn’t it? Now place a couple of bricks under the two-by-four, raising it off the…

Lay a two-by-four on the ground and walk its length without falling off. Easy, isn’t it? Now place a couple of bricks under the two-by-four, raising it off the…

Lay a two-by-four on the ground and walk its length without falling off. Easy, isn’t it? Now place a couple of bricks under the two-by-four, raising it off the…

Lay a two-by-four on the ground and walk its length without falling off. Easy, isn’t it? Now place a couple of bricks under the two-by-four, raising it off the…

Lay a two-by-four on the ground and walk its length without falling off. Easy, isn’t it? Now place a couple of bricks under the two-by-four, raising it off the…

Lay a two-by-four on the ground and walk its length without falling off. Easy, isn’t it? Now place a couple of bricks under the two-by-four, raising it off the…