Aha, that’s the birthday paradox, beta—only 23 people are needed for a 50% chance two share a birthday because we compare every pair, not each to a fixed date. It means unexpected matches happen easily, just like how in password security, a short password is guessable because collisions come sooner than we think. Reminds me of my hospital duty rosters—we once had three Madhavis on the same shift, and I thought, “chaala baagundi,” but it caused such a mix-up with their files! So I trust the maths, but I also trust my own eyes when things repeat.
#exams#study
Jump in to reply — no account needed.