There was an interesting article "Nothing is cheaper than proof of work"[1] that talked about both proof-of-stake and using miners to heat your home. Basically, if you decide you are willing to pay $9 to make $10 back, then discover you are additionally saving $1 off your heating bill, you will logically be willing to pay up to $10 to make $10 back + $1 in savings.
But, the main point of the article was that "proof of stake" is basically selling liquidity (exactly like bonds) and, to get the same job done, the cost of that liquidity won't end up being any cheaper than the cost of the electricity it's replacing.
The Ethereum Foundation has published a response [2].
But, the main point of the article was that "proof of stake" is basically selling liquidity (exactly like bonds) and, to get the same job done, the cost of that liquidity won't end up being any cheaper than the cost of the electricity it's replacing.
The Ethereum Foundation has published a response [2].
[1] http://www.truthcoin.info/blog/pow-cheapest/
[2] https://github.com/ethereum/wiki/wiki/Proof-of-Stake-FAQ#doe...