<span>The exhibition was intended to give a preview, a glimpse of the future, of the possibilities. But not a fantastical or an improbable one but a future that is within our grasps. A future that we are actually reaching with these ideas and technologies that are in development and once mastered will change our lives immeasurably.</span>
its 4 because on the chart it says to make 3 nets youi can make 4 balls
