1. In assessing loss of earning capacity, once disability from a particular profession is established, quantification is not a matter of causation but of damages assessment, and the court may take into account future possibilities even if they have not been shown to be probabilities. 2. Trial courts have considerable latitude and discretion in quantifying damages for loss of earning capacity due to the inherent imponderables in such assessments. 3. Expert evidence must comply with procedural notice requirements; failure to do so may result in exclusion of such evidence in the discretion of the trial court, particularly where the non-compliance results from dilatoriness and lack of preparation. 4. A special costs order (on the attorney-client scale) may be warranted where a party's conduct of litigation is unreasonable, putting the opposing party to unnecessary trouble and expense, even if not motivated by malice or vexation in the strict sense. The Road Accident Fund has a duty to administer claims with integrity and efficiency, including thorough investigation and reasonable, timeous preparation for trial. 5. In assessing whether a plaintiff would have achieved professional success, the court may consider the plaintiff's demonstrated attributes including ambition, skill, work ethic, and the impressions the plaintiff made on the court regarding ability to inspire confidence.