Yet so far only the electoral consequences of this are being widely considered. These may be both explosive and almost impossible to predict. The website Electoral Calculus, which converts poll ratings into general election forecasts, currently reckons that Reform will win between 170 and 426 seats, Labour between 33 and 243, the Tories between 14 and 200, the Lib Dems between 29 and 93, and the Greens between 7 and 70. Every party’s gains or losses could be hugely magnified or minimised by an electoral system not designed for such multiparty competition.