The Bullshit Asymmetry Problem The Bullshit Asymmetry Problem by Joel FilliolWhen looking rigorous beats being rigorousRead on Substack Newer: Joel Filliol: 30 Years Coaching ChampionsOlder:Joel Filliol on the Real Principles of Endurance Performance and Why Zone 1 Still Wins PostedMarch 27, 2026 AuthorJoel Filliol