Investment Theory
Theoretically speaking, you can buy one lottery ticket that will make you filthy rich. Though the probability of that theory coming true may not be likely, it doesn't mean that we should stay away from buying lottery tickets. It may simply imply that after considering the risk/reward ratio, you may be inclined to re-evaluate the amount of money you'd be willing to 'invest' with in the lottery. There are many different types of investment theories, investment vehicles, investor goals, and investment literature.
The pervasive appearance of gray hair, paired with the growing inability to comprehend pop culture, has been a sad, yet poignant, reminder of the fact that reaching retirement age is in the cards for me... as it is for everyone else.