This time last year, it was easy to poke fun at Uber when it announced a “bold experiment”—shared cars running on fixed routes—that sounded suspiciously like a bus.

Henry Grabar is a staff writer for Slate’s Moneybox.

Twelve months later, Uber has begun to replace the bus.

It’s not that Americans are using rideshare services instead of buses, though that may be happening too—bus ridership has fallen in almost every major U.S. city over the past decade.