Common Myths About Randomness (and What Is Actually True)
By RithyVerse Studio · Updated October 12, 2026 · 3 min read
Randomness is easy to define and surprisingly hard to feel. Our brains are built to find patterns, so we see order in chance and expect chance to look orderly. Here are seven common beliefs about random numbers and the facts that correct them.
Myth 1: A number that has not come up lately is due
If you draw numbers from 1 to 100 and the number 42 has not appeared in fifty draws, it is no more likely to appear next. Each draw is independent. This is the gambler's fallacy, and it is true for dice, coins, roulette and random number generators alike.
Myth 2: Random results should be evenly spread
True random results contain streaks and clusters. If you draw ten numbers from 1 to 10, you will rarely get each number exactly once. Repeats are normal, and a sequence that looks too tidy is more suspicious than one that has bumps. Over a very large number of draws, the proportions approach the expected values, but individual short runs stay uneven.
Myth 3: Some numbers are luckier than others
Numbers such as 7 and 13 carry cultural meaning, but they have no special power in a fair generator. Every number in your range has exactly the same chance. People do tend to choose certain numbers more often when they pick by hand, which is why humans make poor random number generators. If you want a fair pick, let the tool decide.
Myth 4: People can produce random sequences by themselves
Try writing a "random" sequence of heads and tails from memory. Most people alternate too often and avoid long runs, which makes the sequence easy for a statistician to identify as human. We are not good at imitating chance, which is a good reason to use a generator for decisions where fairness matters.
Myth 5: A generator can tell you the future
Random numbers do not predict anything. Drawing 17 does not mean something good will happen on the 17th. A generator picks a number with no connection to the outside world, which is exactly why it is useful for settling choices without bias.
Myth 6: The animation affects the result
In many tools, including Randomly, the number is chosen before the animation begins. The wheel, crate, cards or rain only reveal an outcome that already exists. Skipping the animation does not change the odds, and neither does watching it closely. If a site claims you can influence the result by clicking at a particular moment, be sceptical.
Myth 7: All random generators are equally good
Quality varies. Simple generators can have patterns, short cycles or a small bias, and some are predictable if you know the start value. For everyday use, a cryptographically secure source with a method that avoids modulo bias is a strong choice. For anything involving security or money, you need properly audited tools. You can find more detail in True Random vs Pseudo-Random Numbers.
How to think about randomness properly
- Judge a process, not a single result. A fair method can produce any individual outcome.
- Expect streaks, and be suspicious of results that look too regular.
- Decide the rules before you draw, and avoid redrawing.
- Remember that independent events have no memory.
Try it out for yourself on the generator. Draw a few dozen numbers in a small range and notice how uneven they look, even though every draw is perfectly fair.