If your gains when you win are greater than your losses when you lose, then you are antifragile. Conversely, if your losses are greater than your gains, then you are fragile.
In reality, trading is like this.
In reality, we need to create an antifragile environment. For example, when we start a business, the cost of failure is very low; even if you fail, your life remains the same, which means your downside risk is minimal. However, if you succeed, then your life will change significantly, meaning your upside potential is very high. This is an example of antifragility.