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You right, but I will write how I think. Incentive in not only to run more hardware, but to run more effective hardware. This incentivises innovation. In POS you don't need to do anything else. Just stake coins. No innovation, you can always be a monopoly if you have the cash to make a one-time investment. In POW you always have to invest to be competitive and have the most competing hardware.


> This incentivises innovation.

It's only innovation into how to extract more profit from that specific pow function. Why would we care about it? (Or why call that innovation?)

> In POW you always have to invest to be competitive and have the most competing hardware.

I struggle up find a positive impact of this. There's been a number of negative side effects though.


> This incentivises innovation

What useful innovation has come out of mining? Mostly I see very innovative ways to cheat energy markets and create ewaste.




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