[nattofriends]

No one mentioned it because it is not the same, it is only comparable. RER is, like you said, of the same scale, but 40 years old and proven. You should be happy to bring things you like into the conversation, but not surprised that other people don't like the things you like.

[maattdd]

It's a thread about a rail engineering project so I was assuming the crowd was interested by those stuff...