You mention mortality. If humans continue to be able to live longer it has potential side effects here where the past has even angrier folk. It also points to systems such as passing wealth and power down through generations, and setting up structures to keep this going (religion being one, to your point).
Imagine if we are born into more equal situations, coupled with a system that is able to take care of all of us.
Oh and air travel….. It can be painful, but we are flying in the sky and can get to the other side of the world in no time ;)