1. Why is high CO2 the limiting factor to Dynamics (Alanc post)
Co2 is what gives your body the urge to breathe and at my current level of ability (1:30-1:40) i think high levels of Co2 is limiting me before i get low on oxygen. Obviously the higher a Co2 tolerance you can build and/or the more you can purge you would eventually meet you O2 limit.
Alan.