Longevity will equal working more years to sustain life, too many people are being born into the world to sustain life as it is now, no I don't ponder too much about living to 100 let alone 200 years.
Three score and ten is sufficient to do what you should be doing, that is living a balanced life, more than that is a bonus, but humans are pushing it too far.
Reach for your dreams when you are 15 work hard, play hard and save, save, save! Invest as much money/coins/tokens as possible to earn from earnings, plan a project to have retirement in sight by the age of 50 to enjoy some time with that money/coin/token or what is living?
Thinking aloud.... @kryptonia
Sound advice as always @joanstewart. I agree that longer living is not the goal. Better living should be. And you seem to have that under control!
My aunt lived to 100 years, we were pretty close with her being a spinster. When visiting her on her 100th birthday, she told me in her confident way (that was serious), I will not be here for another one! To which I retorted, well I didn't come all the way from Durban to Johannesburg not to celebrate, I don't do funerals, so let's go have some fun with the living....
Moral of the story, she did not make the next one (I also did not attend the funeral) I remember her enjoying a 'tipple' (a drink), riding my bike (and falling off laughing), having fun even thought she was 50 years older than I am (she was born 1905) - I shared her name (until I married) here she is with her "Madiba" wishes for reaching the big 100. Never wish for something, never look back with regret.....