Digital doping - one can cheat on Zwift by playing with the weight numbers. Zwift should have bike shops certify a riders weight (by weighing them) and register the rider on Zwift. So the rider will have like a special emblem showing they are on using genuine numbers. These certified zwift riders cannot change their specs online. It can only be done by zwift approved bike shops....for a small fee. Bike shop wins......Zwift wins on reliability.....and the zwift community wins also because it's nice to know that rider that went by you at 100km/hr is not doped but for real.