Who knew life could be so comparatively comfortable at 40,000 feet, with the ambient air temperature at -77ºF just outside the window? The four of us are about to dine on reheated croissants and orange juice 7.5 miles above Penzance. After a refreshing two-hour sleep — seated — our new day dawns.

An hour later: Alps on the horizon, a smooth touchdown in Zürich, and an uneventful connection for our flight to Brussels. In Zürich, Tintin was spotted:

— Erik