Can we really trust Zwifts data to prepare us for real-world endurance events, or are we just getting a false sense of security from our virtual rides? Ive seen people crushing it on Zwift, only to struggle on actual long-distance rides - is this just a matter of not translating virtual watts to real-world endurance, or is there something more at play? Should we be taking Zwifts data with a grain of salt, or can we really rely on it to get us ready for events like gran fondos or century rides?