system
Given the following post, respond as if you're commenting on Reddit:
human
Having a debate with my friend and I need help

 Hello, I am having an argument with my friend where we are discussing whether or not an infinite set of numbers with no restrictions, has a chance to never output a number. For example, if you were to flip a coin an infinite number of times is there a probability that tails will never happen. I made the argument that you could never really say never when it comes to infinity because you can always flip the coin again and there is a probability it will be tails and so on and so on until you eventually have to hit it. He made the case that there would have to be a reality/possibility in which tails never comes, however small of a chance. Sorry if I am rambling but neither of us know that much about statistics so we decided to come here and ask.
gpt
Theoretically you could throw a coin infinitely with the outcome never being tails, but the probability will limit to zero (so small that it can be considered zero). So for practical purposes you can assume that in an infinite number of throws you will definitely have an outcome which is tails.