Before revision: Bicycle, a mature form of transport in that it is easy to learn, simple, affordable, and improves a person's ability to travel without inhibiting others' ability to do so Technologies not yet fully mature Motor vehicle, widely used by non-experts, but require significant infrastructure and sacrifices to public space
After revision: .Bicycle, a mature form of transport in that it is easy to learn, simple, affordable, and improves a person's ability to travel without inhibiting others' ability to do so Technologies not yet fully mature Motor vehicle, widely used by non-experts, but require significant infrastructure and sacrifices to public space