Yes, I say that it's more likely to find an unicorn somewhere on Earth (an undiscovered species) than to get that toss sequence. We say that an event is impossi

Yes, I say that it's more likely to find an unicorn somewhere on Earth (an undiscovered species) than to get that toss sequence. We say that an event is impossible for _way_ less probabilities (I could be hit by a cosmic radiation and start to grow a third arm, but it's unlikely enough to say that it's impossible).