Mathematics
The Law of Large Numbers and Its Intuitive Meaning
Quick fact
In a large-scale simulation of coin flips, the proportion of heads converges to 0.5, but the absolute difference from 0.5 can actually grow as the number of flips increases—yet the proportion gets closer to 0.5.
Why this is interesting
Have you ever wondered why flipping a coin 100 times almost always gives you close to 50 heads and 50 tails, even though a short streak of heads might occur? Why does the average of random events become so predictable over time?