Seville, Spain has gone from 0.4% (essentially zero) to 7% bicycle mode share in 5 years. Boulder’s bike share is something like 9% and we’ve been at it for 20-30 years. This suggests to me that we are being too timid, and that we have no reason to rest on our laurels. Seville did this on the cheap, and they did it fast, by taking a small amount of space from cars, and giving it to people, while also physically protecting the people from the cars.