Generate a context and a hypothesis.
Context: Swing Sequence: Dustin Johnson What we can learn from Dustin Johnson's booming drives: Only a few tour pros have a shot that can make other tour pros stop what they're doing on the range and have a look. 2016 PGA Tour Player of the Year Dustin Johnson has one. Study his swing frame-by-frame. Start Slideshow

Hypothesis: Dustin Johnson may have had the worst swing 10 years ago but his boom drive in 2016 was miraculous.