These are quite interesting set of questions you have here. Plus you have also provided the answers for the same . You're right in most of your questions. We, indeed, have come from a very long way to this technologically advanced world.
But I think, we're not gonna stop here. Now humans are planning to fathom the whole universe, moon and mars have already bee accomplished now then next milestone should be Jupiter I guess.
But while we're running after this tehcnological advancement, we're leaving behind our humanity itself. Now, you can observe anywhere that every person is for itself. No one cares about anyone but itself. If you're a religious person then you should already know that we have given this life for a greater purpose and helping others is among them. Hatred, greed and selfishness are the new milestones of the modern world.
So the greater question should be, Are we living this life or just spending it ?

Anyways great article, quite interesting I would say @sauravrungta