Session Mode allows the player to lead an artificially intelligent band that plays along with them. The virtual band (which can be customized according the player's choice of metronome and instruments-- there are 70 different Session Mode instruments!) reacts to their playing dynamically. It's a more advanced feature, but Rocksmith 2014 Edition has missions to guide the player through it if they are a beginner. Experts can jump right in and play along the entire guitar neck by zooming out.
God is a Geek presently has 138,804 views for Rocksmith 2014 across 4 videos, with his channel publishing less than an hour of Rocksmith 2014 content. This makes up less than 0.08% of the total overall content on God is a Geek's YouTube channel.
2