It can be quite instructive to look back on divergent points in popular culture, and speculate on what could have been: the War of the Romantics between Brahms and Wagner, Bob Dylan going electric, the split between Gangsta Rap and Conscious Hip-Hop. One example which may not be mentioned in many history books is the evolutionary split in dubstep at the beginning of last decade. On one branch there was the more subtle approach by artists such as Benga, Coki, Skream and pre-chart mainstay, James Blake, whereas on the other there was the ultra-aggressive American wave spearheaded by artists like Skrillex. Of course…