[throwaway5792]

I didn't say they were the same, but they serve the same purpose. Buying a put is a long volatility and short underlying position. You can mitigate the effect of volatility with spreads. But the directionality of the position is what you're buying with a put, you're buying delta within a certain time frame. And as I said, the risk profile of put or well constructed spread is better than plain shorting which has unlimited downside.