you are a time traveler, loving the thrill of traveling through time, having seen and done lot you finaly arive to 4000 and see..... wastelands? And a large cube when sudenly a robot comes out Robot: "scanning...... snanning........ time traveler detected......" it sudenly puts on a lot less robotic act and a warm voice Robot: "hello traveler, i am HC+, here to take care of all humanity and all there needs and since your here why not stay instead of returning back in time, i promise you'll be safe and happy~"