<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>cup-of-tea</author><text>I remember reading a proposal for a system where a high speed train would travel non-stop for the entire length of its route. In halfway towns a shuttle would be sent out to match the train&amp;#x27;s speed, interface with it to exchange passengers then detach to return to the halfway town platform.&lt;p&gt;It sounds unbelievable, but remember it was once considered insane to consider building a railway between Liverpool and Manchester.</text><parent_chain><item><author>5DFractalTetris</author><text>...But could you match a platform to a slipcoach&amp;#x27;s velocity?</text></item></parent_chain></comment><story><title>Slip Coaches: Back When British Express Trains Detached Passenger Cars at Speed</title><url>https://99percentinvisible.org/article/slip-coaches-back-when-british-express-trains-detached-passenger-cars-at-speed/</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>DoreenMichele</author><text>Your question makes me think of how some airplanes refuel in flight, which blows my mind.</text><parent_chain><item><author>5DFractalTetris</author><text>...But could you match a platform to a slipcoach&amp;#x27;s velocity?</text></item></parent_chain></comment><story><title>Slip Coaches: Back When British Express Trains Detached Passenger Cars at Speed</title><url>https://99percentinvisible.org/article/slip-coaches-back-when-british-express-trains-detached-passenger-cars-at-speed/</url></story>