Why is "Liverpool–Manchester lines" trending?

Wikipedia Overview

There once were four direct railway routes between Liverpool and Manchester in North West England; only two remain: the centre routes of the four. The most northerly and the most southerly of the four routes are no longer direct lines. Of the remaining two direct routes, the northern route of the two is fully electric, while the now southern route is mostly a diesel-only line, with only the westernmost section shared with the West Coast Main Line being electrified. The most northerly of the four has been split into two routes: the western section operated by Merseyrail electric trains and the eastern section by diesel trains, requiring passengers to change trains between the two cities. The fourth route, the most southerly of the four, has been largely abandoned east of Warrington; the remaining section caters mainly for freight trains.