We are almost in the year 2020 now. Public transport works very well in western europe, and flights are cheaper than a night in a 2 star hotel. I have personally flown for many times, from Switzerland to Scandinavia, and from Switzerland to all places where there was some work, or there was a conference. I always had a rule that I won’t fly to neighboring countries, but e.g. to Serbia I took a flight many times. Yet, we have decided to change this. Things cannot continue how it is, as it’s just not really environmentally friendly – there are