Machinist Splitshot

[Iscah]

Random chance is random.

It's entirely possible* to flip a coin 20 times and have it come up heads every time - and your 21st flip still only has a 50/50 chance of finally coming up tails, however "overdue" you feel it must be.

* Possible but unlikely, of course: specifically 1 in 2^20, which comes to 1 in 1,048,576. But the outcome of the next individual flip is still 1 in 2.