The above plot uses starting principals from $1,000 to $1,000,000, the latter being roughly equivalent to the "meager" sum Jeff Bezos was handed to him by his parents to start hawking books out of their upper middle class home garage. The plot also uses a conservative 4% investment growth that is typically used for conservative retirement planning. Under all of these scenarios, and even after 100 years no one becomes a billionaire. The one with the largest beginning principal grows the fastest and reaches over $50 million. Still, that is only one twentieth of a billionaire.