Why don't we just always increase alpha? Well, the problem with that is if you increase alpha, so let me write this down. So if you take alpha, your significance level, and you increase it, that will increase the power, that will increase the power, but it's also going to increase your probability of a type one error. Because remember, that's one way to conceptualize what alpha is, what your significance level is. It's a probability of a type one error. Now what are other ways to increase your power? Well, if you increase your sample size, then both of these distributions will, these sampling distributions are going to get narrower.