Physically safest, yeah I'm sure. Just a couple years ago we went an entire year without a single airplane accident or crash, globally. Millions upon millions fly every year, and all those people travelled safely without a fatality, that's pretty dope.

It sucks we aren't at a point where we can get people around the world while staying carbon-neutral yet. I guess when it comes to getting someone from one side of the globe to the other in a day, planes are the best we have for now.