On October he did began to incorporate the Global Pass (3 months) which got him as far as Istanbul and Ankara and high up north as Kiruna in Sweden, Lapland.[0]
Seems a very cautious guy, as he was booking a night train from Budapest to Bucharest, apparently he was warned at the counter by an employee which made him very uneasy. Reminds of the story of that TEDx talk.[1]
He is clearly enjoying it so I hope the positive experiences encourage him to even go beyond Europe, like to India ;) [2]
[0]https://leben-im-zug.de/mein-jahresrueckblick-2023/