What did you do during the summer when you were eight years old? Jackson Brooks created his own 3D Printing World on YouTube. He has more subscribers than we do. In the third and final installment of our conversation with Brian Brooks, he shares the benefits of a 4/10 work schedule (every Friday off) and how he managed to pry his son away from Roblox. Rex is so gobsmacked by the conversation he forgets how to end the show.