The phrase "who would have thought" is an idiomatic expression used to show surprise or disbelief at something unexpected or surprising. It is often used rhetorically to emphasize how unlikely or unforeseen a particular fact or event is. For example, "She's written two novels since graduating? Who'd have thought?" expresses astonishment at the achievement
. Additionally, "who would have thought it?" is a variation used similarly to express surprise that something has happened, such as "So, Alex is going out with Hannah. Who would have thought it?"
. Beyond the idiomatic usage, "Who Would Have Thought" is also the title of songs by various artists, including Darren Hayes and Brian McKnight, each with their own distinct musical works
. In summary, "who would have thought" is primarily a phrase used to convey surprise at unexpected information or outcomes.
