For the cinematic experience

As a bi public transport enthusiast: Slow and steady for both! Highspeed rail is overpriced bullshit, especially when you start doing completely separate rails for highspeed (e.g. like France) instead of shared rails (e.g. like Germany; yes German rail has many issues, but this isn't one of them).

Getting railed at high speed

Bottom is the name for the receiving(?) end of a relationship, in a classic nuclear family scenario it would be the wife for example. But usually it is used for homosexual or otherwise atypical couples.

"Railed" or "smn got railed" is a euphemism for had sex, specifically the deep kind.

So wanting high speed rail, can be in pure theory read as wanting to have high speed deep penetrating sex, which is coincidentally (or not) what a bottom might want

Here you go