By THOMAS M. DISCH From DIRA IV To Central Colonial Board There is intelligent life on Earth. After millennia of lifelessness , intelligence flourishes here with an extravagance of energy that has been a constant amazement to all the members of the survey team. It multiplies and surges to its fulfillment at an exponential rate. Even within the short period of our visit the Terrans have made significant advances. They have filled their small solar system with their own kind and now they are reach