I've never seen this word "fortuitous". what does it mean?
Native speaker’s answer
Rebecca
"Fortuitous" is an adjective which means fortunate, happening by a lucky chance. It describes good things or events that are unexpected or accidental. In this case, "fortuitous" is used to describe the good, lucky effect of the placebo effect. Ex: I met Bill Gates in a cafe. It was a fortuitous encounter. Ex: Our business thrived because of a fortuitous lack of competitors in our industry.