Perhaps a more realistic aim is "How to be able to live comfortably & not have to worry about having enough money in old age (without being lucky)". Disclosure

Perhaps a more realistic aim is "How to be able to live comfortably & not have to worry about having enough money in old age (without being lucky)". Disclosure: I'm building a startup https://Tontine.com https://Tontine.com which brings this currently almost impossible target within reach of the majority of savers. If you are lucky enough to live a long life then you'll also get rich but the ability to enjoy your life between 65-95 is what should matter more.