@jonmsterling @olynch @albertcardona @elduvelle The oldest Cook's timetable I have is from 1984, and then just going from Barcelona to Paris would take a whole day. Leave Barcelona at 07:40, arrive in Paris Austerlitz at 21:35. And that includes changing trains at the Spanish-French border. Different gauge, you know. (You knew that, I hope?) Nowadays there is a high speed railway in standard gauge between the border and Barcelona (and onward in Spain).
From Paris there was a night train to Berlin, the Ost-West Express, but it left already at 16:20. Oops.
Sure, it might have been a better idea in those days to not do the detour through Paris, and instead start with the Catalan Talgo to Genève, leaving Barcelona at 09:50 and arriving in Genève at 19:44. But is there any night train after that from Genève to Berlin? Nope, don't think so, can't see it.
(Of course, in those days Berlin was not as important as it is today after German unification, and it would make more sense to check for instance Barcelona–Frankfurt. But that doesn't change the fact that in 1984 there was no high-speed rail in Spain, in France a single line Paris–Lyon, and none in Germany. 60 years ago there was no high-speed rail anywhere.)
So I hope you see why I am a bit sceptical about your claim that "60 years ago, it was 10X better".