As media are developed, new art forms are born,
and the old forms are changed.

The technology of still photography begat its own art form
and forever changed the aesthetics of painting in the process,
giving rise to impressionism and abstraction,
which in turn affected photography in an aesthetic feedback loop.

Soon,
electrical stimulation of the brain (ESB) will give the cinema
a way to directly affect emotional states
such as sorrow,
joy,
arousal,
wistfulness,
and frenzy.

AUDIO: Water lapping, seagulls, distant nautical horns and the sound of a crowd.

VISUAL: Wide shot of a dock with ocean liner. We're in a crowd waving their goodbyes to the embarking friends and loved-ones gathered above at the rail of the ship. The camera works the crowd then follows a rope up to the deck of the ship, moving through the onboard voyagers, stopping on one woman who is looking down into the crowd for someone, someone she cannot find.
We now see that the ship is pulling ever-so-slowly away from the dock.

ESB: A hurried anxiety while the camera goes through the crowd followed by a questioning feeling as the camera climbs the rope to the ship. A feeling of recognition mixed with a feeling of love as the woman on the deck is first seen. Gradual change to longing and regret. Finally intensify regret while bringing up anxiety as the woman fails to recognize anyone in the crowd.

AUDIO: [Shouting, in the distance, mostly drowned out by the ocean liners mighty horn.] Margie, Margie, I'm here, I'm over here. I'm over . . .

VISUAL: The woman hears nothing. The ship departs. The woman turns sadly away from the railing and disappears into the shadows of the ship. Fade to black.

ESB: Increase regret and anxiety. Cap with a pang of regret and a wide feeling of missed opportunity. When image fades to black, fade out anxiety, and hold on regret for five seconds before fading to a completely neutral emotion.

Should be do-able in as few as 3 and as many as 20 years.