Suppose you are waiting for your regular train at an Amsterdam suburbian station,hearing strange noises from something mysterious approaching.
What would you think if you are not familiar with steamlocomotives?
Afterall,steam locomotives are a rare sight nowadays,only the elderly having memories going back decades.
Sometimes,steam locomotives appear in picturebooks for little children,but apart from that it is something unknown to the general public.

Watch the lady in the black and white coat,wearing the sunglasses,as if she has just seen a spacecraft flying by.
You also see people making spontaneous pictures with their smartphones,as if no one would believe them if they tell the story during dinner.

Great stuff!