How on earth Seoul is at no. 70 and Zurich at no. 3? Anecdotally, according to someone who's familiar to both places living in Seoul now is more expensive compared to Switzerland's cities (Top 6 from top 10 cities).
As someone that currently lives in Zurich but has no experience with Seoul, I find a lot of these metrics prioritize certain things which skew their results for many people with other lifestyles.
For instance, I was paying 2-3 times as much in living expenses in SF compared to here in Zurich, almost entirely because of rental costs. Apartments here are relatively cheap, and one can survive somewhat frugally by avoiding service-based spending such as dining in restaurants, taxis, etc.
