In inner cities, plagued by horrible traffic jams and pollution by cars and lorries, we dearly await at least the one day per year without this nuisance. Mobility can be organized differently. Brussels demonstrates this in an exemplary fashion. Many families gear up for this one day to teach kids how to cycle technically without the dangers of the fight for space, speed and breathable air. Older persons also feel much more save then and walk or cycle longer distances than they usually do. So many winners and only a few forced to not use their cars during 10 hours. Massive health benefits for the whole city, especially on too warm a day in autumn 2023. All these kinds of ideas were already discussed before the COVID-19 crisis on a mobility fair in Brussels. It is not the ideas that are missing, but the political will and courage to try new ways forward. Learning that walking and cycling in cities do not hurt you, prepares the readiness to go further along this path. Just do it. And do it faster than in the past. The planet needs it, people seem to really like it, too. Enjoy.