Most people don't understand the odds.
Many folks struggle with statistical probability. Take the birthday problem... In a room of 23 people, there's a 50% chance two of those people have the same birthday. But if you have 75 people in a room together, the chance of two of them sharing the same birthday is 99.9%. Reaching a nearly 100% probability with just 75 people seems crazy... Surely you need more people, right? But it's statistically correct!