What is an example of something that could be described as "profound"?

The term "profound" refers to something that is deeply meaningful, insightful, or significant. When considering a significant scientific discovery, it often represents a substantial advancement in understanding and can lead to transformative changes in knowledge or application. Such discoveries have far-reaching implications, influencing fields of study, technology, or societal views, which epitomizes the essence of being profound.

In contrast, other choices represent concepts that do not carry the same depth or significance. A shallow movie lacks the complexity or depth that characterizes profound experiences, a light-hearted joke may be entertaining but doesn't evoke deep thought, and an everyday task typically does not carry significant meaning or insight. Therefore, the significant scientific discovery stands out as the example that truly embodies the essence of the word "profound."