Exactly, no pulse in any way when the train goes dark... Just a "ohh" and thatīs it - late for the meeting...
Actually if we use that scenario of yours a bit further then we could attempt to put an end to all future comparisons between buses, airplanes and trains except they all carry people from A to B.
Itīs worth a shot.
If we would be able measuring the pulse of people traveling in different types of transport for example buses, trains and airplanes before and after we would ensure "everything goes completely dark" then without being overly optimistic we would possibly see a increase in the pulse and also increases in the pulse depending on the type of transport the person is in. As a result of that we would be able to conclude there are indeed more differences between buses, trains and airplanes than what initially appears to be the case.
Love trains. Quiet, no seatbelt signs, full carry on electronics without restrictions, no nasty booking experiences, more space, no issues with baggage, more of everything. Arriving 20 minutes before departure of course not problem.
Pleasant, exotic, every once in a while.