In my opinion we don't have any particular point. However, science show us that our human activity on the planet hasn't been good and that we have to do something about it. That should be a nice point, rescuing earth.
Find something to do in life, preferably with benefit (and not just for your own as individual which unfortunately many of us misunderstood **). You have around 60 to 90 years of battery life, spend it wisely !
** I'd just like to say that most of the posters here on eHealth seem to be very reasonable and socially helpful, so don't worry I'm not talking about anyone
here in particular.