The two hemispheres of the brain, left and right, process data differently. Intelligence o involve using both tools. The right brain does spatial or integral processing, while the left brain does differential processing. The right would notice common patterns within a group (asian) while the left sees very specific details (Bruce Lee).
The left is better for differentiating the details for data collection, while the right is better for integrating data into simple patterns. The tough part is merging the two and translating the result into differential; simple result. This is processed in the corpus collosum.
As an example, if a western person went to China for the first time, they would first notice how much everyone looks similar. This is integral processing. As you spend time the differential brain will begin to see differences. As these differences build, the integral brain will see integral patterns from this. The differential brain will then see even more detail from this subgroup, etc. Depending on where you stop, the goal is a simple or differential relationship that reflects the integration.
The relationship E=MC2 is good for any differential matter/energy detail , while also reflecting the integration of all matter and energy. It is perfect.