"Last summer, I traveled solo on the Amtrak Coastal Starlight from Santa Barbara to San Francisco and spent the entirety of the 9-hour journey in the communal observation lounge, where fellow travelers rotated in and out, sharing tables and playing cards while admiring the views. As the sun set on the second half of the trip, a few musically-inclined passengers formed an impromptu band complete with an acoustic guitar and mandolin. Word slowly spread and others trickled in from other parts of the train to take turns singing songs in different languages."