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   Fourth class has arrived on high-speed trains between Paris and
   Brussels. As The Independent revealed recently, the new low-grade
   option is being sold under the “Izy” brand - along with a slightly less
--

   Then there’s the schedule - only two or three trips a day, each way.
   And because Izy keeps away from the busy high-speed line for most of
   the way through France, the journey takes up to an hour longer than
   Thalys. By now you’re probably wondering what this development might
--
   start-up businesses keen to conserve every euro. Thalys might then
   switch more capacity to the low-cost subsidiary. It could assign some
   valuable slots (known as paths) on the high-speed line to Izy. As
   frequency builds, more business travellers will start to notice. And
   that’s when class consciousness comes into play.