expanding brain

TELL SOMEONE TO OPEN THE DOOR FOR YOU; TIE A ROPE TO THE DOOR AND OPEN IT; MAKE A BUTTON THAT OPENS THE DOOR AND PRESS IT; INVENT A ROBOT THAT OPENS THE DOOR; INCINERATE THE DOOR WITH FLAME THROWER; USE TELEKENISIS TO OPEN THE DOOR; LIQUEFY THE DOOR WITH A LIQUEFYING RAY; GO BACK IN TIME TO WHEN THE DOOR WAS OPEN; GO BACK IN TIME AND PREVENT DOORS FROM BEING INVENTED; OPEN THE DOOR YOURSELF