We've used derivatives for many, many years. I don't think derivatives are evil, per se, I think they are dangerous.
It's us fun being a horse when the tractor comes along, or the blacksmith when the car comes along.
Having a large amount of leverage is like driving a car with a dagger on the steering wheel pointed at your heart. If you do that, you will be a better driver. There will be fewer accidents but when they happen, they will be fatal.
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