ASIC => centralization => big hit on head => ?!

Miners mine as long as it making money. And the community is full of their voice - not to change before earning enough. Security/efficiency call is all base on POW, there is always other ways to do it.

Look at the big picture, transaction fee will be kept lowering by competition of upcoming digital coins, and mining cost determines transaction fee ultimately. In the end, anybody can mine with redundant power of the devices he/she owns to barely make up the wasted capacity. Do not worry there is not enough idle power. I am now running some scientific computation programs for free, using 4 CPU cores out of my 8, and there are thousands of other people with me. 1000 stable online nodes could be enough to replace VISA.

I am not someone you can nail a "Missed Loser" mark on my head, or someone promoting something else. I got bitcoins and love it, and wish the community still have the leadership to move on, no matter what have achieved and what to cost for a bright future. Do the right thing, or be left in the cold - community's choice.