I am often traveling between Turku and Helsinki by train because of my work. One morning I walked to the train as usual, sat at the seat whose number was marked in my ticket, and waited for the train to leave. I wondered lazily why the train was more full than usually, and sank into my thoughts. Soon there was an announcement: “Welcome to the train heading to Tampere…” I did not check out the platform before stepping in the train, because the train to Helsinki always leaves from that track. That day the platforms had been changed, but luckily I still had time to catch the right train.