India, June 19 -- There is a painting at the Louvre that few visitors notice.

The Wedding Feast at Cana by Paolo Veronese is the largest canvas in the museum, nearly 22 ft tall and 33 ft wide. In it, 132 figures crowd a scene of such joy that it feels like an artistic miracle.

In theory, it is unignorable, hung floor to ceiling in the museum's most-visited gallery.

In practice, most visitors simply rush past it, because a few metres away, in the same room, hangs the Mona Lisa.

This is not about which painting is better. It's about the power of recommendation.

Artificial intelligence is set to crowd every room we care about, to a greater degree than we can estimate. Cana vs Mona Lisa feels, to me, like a preview of what AI will bring ...