Such a difficult topic to address, the bikes are so so good and tech development improves each day, the rider being the non predictable element. The races will hopefully last long into the future. The problem we will face will be the pressure of people sat on social media, who know nothing of the sport, or the people who spend 50 weeks of the year; thinking of, planning for, and dreaming about the other 2 weeks of the year on the Rock. The social media doggooders will be the biggest experts around and will put pressure on authorities to restrict the riders just because they don't want to read a bad headline in the news.