Understand it often represents an abstract high point, like popularity, success, or influence, not just physical height. Jazz reached the crest of the wave in the 1920s.
Pro Tip 2/3
Temporal Context
It typically implies a temporary state that may decline; important for gauging the timing of actions. The company's profits hit the crest of the wave last quarter.
Pro Tip 3/3
Cultural Dynamics
Be aware it might reference trends or movements within arts, technology, or societal behaviors. The smartphone app is at the crest of the wave in social media trends.