Final answer:
The statement likely relates to the video game 'Portal' under Computers and Technology, where 'X and X' symbolizes the interconnected portals used in the gameplay.
Step-by-step explanation:
The statement 'Portal always has X and X' could possibly refer to the video game 'Portal', typically studied under the subject of Computers and Technology. This is not a math problem, historical fact, or a scientific concept. Instead, the 'X and X' might refer to the pair of interconnected portals that players must create to solve puzzles throughout the game. The game is well-known for its unique gameplay mechanics, which involve creating these portals to traverse otherwise impassable obstacles and complete the levels.