Swiss here and my sister does contribute to the CST. Looking at a few questions: Yes we have a very well working train system (for example a delay of more than

Swiss here and my sister does contribute to the CST. Looking at a few questions: Yes we have a very well working train system (for example a delay of more than 2min is announced). The problem is rather that our infrastructure can’t keep up with the amount of commuters (at least prepandemic). Secondly nearly every squaremeter is either used for agriculture or very expensive land (at least around the cities). On top of that we have laws to prohibit trucks or trains to ride at night. And no we don’t have just mountains here, the upper part from geneva to Bern to Basel and Zürich are more or less flat. All of these with a good expertise in tunnel building are reasons why CST can be a solution… it is just that construction project can take years or 10s of years to get approved and everything moves quiet slowly.