On Dec 26, 2015 9:24 AM, "Eric Lombrozo via bitcoin-dev" <bitcoin-dev@lists.linuxfoundation.org> wrote:
 
> Unfortunately, this also means longer confirmation times, lower throughput, and lower miner revenue. Note, however, that confirmations would (on average) represent more PoW, so fewer confirmations would be required to achieve the same level of security.
>  

I'm not sure I understand this. If mining revenue per unit of time drops, total pow per unit of time should also drop. Even if the inter-block time is increased, it's not clear to me that the pow per block would necessarily be higher.
What am I missing?