More opportunities than ever exist for you to win a billion dollars thanks to the Powerball and Mega Millions lotteries.

But that doesn't mean your chances of winning a sizable lottery prize have increased from where they were ten years ago.

Humans simply don't perceive risk very well at all, especially when it comes to extremely rare events.

The following information will help you understand how lotteries operate and why they advertise mega-jackpots.

The size of jackpots is increasing as interest rates rise.

The regulations have changed: Mega Millions and Powerball have thrown off an old agreement that limited each of them to specific regions of the nation.

People struggle with probability calculations.

Large prizes change the demography of the lottery.