In the Tour de France, yes, but otherwise only to the extent that any form of mechanical assistance (including cycling) is “cheating” compared to walking. Humans have cleverly invented machines enabling them to get from A to B in a more timely, practical and convenient way. Unfortunately, some of these (fossil fuels driven vehicles, we’re looking at you) have contributed to other problems including air pollution, obesity, congestion and climate change. The electric bike may be the best form of transportation yet invented. Super energy efficient, pollution-free and usually faster at peak hour than a car or bus. You’ll still get exercise, but unlike a regular bike you won’t arrive hot and sweaty to work, requiring a shower (or being ostracised by your workmates).