Enjoy the video. And do you think this man has built his bicep by doing bicep curls? I really doubt that. On the other hand, as shown in the video performing pull-ups has aided him in building strong arms.
Leonardo da Vinci says, “Simplicity is the ultimate sophistication.” I do hope that you can interpret and get the meaning of the quote. From a weight trainer’s perspective, it means that you should keep the workouts simple by covering all the multi-joint movements. Do not make a huge fuss and complicate things by dedicating a complete day to train biceps and triceps. Rather perform movements which give the biggest bang for the buck.