A door that cannot be passed through

This compact redstone creation demonstrates a seemingly functional door mechanism, humorously designed so it cannot actually be traversed. Spanning a modest 8x3x9 block footprint and utilizing 56 blocks in total, it showcases basic redstone principles in a flat, accessible layout. The contraption features simple yellow block construction, redstone dust, repeaters, and a lever, all working together to create an impassable barrier.