You can walk into any room of people and find someone with something similar, or the same as you. (Well usually.) A birthday, the same name—sometimes more than one name the same—same parents’ names, education, employment. You name it, these coincidences occur more often than you’d think.
But the chances of it being more than one of those things are a lot lower. You might both be called Rose and were both born on 28th April, but you probably aren’t both named Rose Ellen Grant and work as teachers.
But what if you were?