Bitcoin is unstable without the block reward

http://freedom-to-tinker.com/2016/10/21/bitcoin-is-unstable-without-the-block-reward/

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Does pos have the same issue?

Obviously not, because you don’t need expensive mining industry to keep the blockchain secure.
You can run Peercoin minting on a device like RaspberryPi that consumes like 25 kWh per year.
An Antminer S9 consumes that in less than a day and has way more purchase costs than a RPI.

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