“Where a loss is alleged to be a lost opportunity to acquire
a benefit, the Plaintiff bears the onus of proving that a loss
was caused by the conduct of the Defendant discharges
that onus by establishing the chain of causation that
continues up to a point where there is a substantial
prospect of acquiring the benefit sought by the Plaintiff.
The Plaintiff must establish both the historical facts and
any necessary hypothesis on the balance of probabilities.”