I hope one day scientists would find a way to minimize the aging process and prevent diseases which are most prominent in older people. But with the increased life spam population of Earth may increase multiple times, there would food shortage and many other problems.
Instead of having a longer life like centuries we should long for a healthy life instead. We are in this world to be tested. We should earn the rewards of noble deeds and we should be helpful to the community. We should be playing our part in the life like we should so that we would be remembered by people like the Great Men of Past.
BTW it was very informative blog and was written really well!