How far can buoyant Liberal Democrats bounce back?

Liberal Democrat leader Jo Swinson leaves after she delivered her speech at party conference in Bournemouth. Photograph: Peter Nicholls/ReutersAt what was a pre-election conference in all but name, any time a group of Liberal Democrat activists gathered the same question would arise: how far can a buoyant party with a bounce in its step, a clear Brexit position and a new leader rise from its current 18 MPs?The answer would generally range from a base assumption of 40 seats, rising to giddy specu