How Do You Know if Someone Has Dyslexia?

You don't know how many users are like struggling through using the wrong, you know, input medium or something like that. So we need to assume that we're going to make it more accessible for everyone. It's going to be better for everyone. Like, we know it's going to happen. We don't need metric for that because each one of them know someone with dyslexia or someone with low vision or even someone without the ability.