The expression indicates a state of surprise or newly acquired knowledge. It communicates that information has only recently become known to the speaker or writer. For example, upon discovering a company’s unexpected profits, an individual might internally acknowledge, “That’s a surprise.”
Using such expressions serves to acknowledge a change in understanding and can initiate reflection on prior assumptions. Historically, expressions indicating surprise have been fundamental in communication, reflecting the human experience of constantly learning and adapting to new information. Succinctness in conveying this surprise online allows for efficient communication in fast-paced digital environments.