"Is CPU mining dead?"
The short answer to that is YES, if you what to make a living of it.
But you can still earn "money" / crypto coin doing it and you might get lucky.
If you like me are working on a computer all day, but don´t use the computers resources fully.
You can mine crypto coins in the background, and it have become very easy to setup thanks to MinerGate.
There are many different mining programs, but Minergate allows you to choose the amount of CPU’s and GPU´s that you want to use and thereby letting you mine crypto coins in the background.
And best of all it has a Smart mining function that always mine the most profitable coin at the moment.
This will properly not make you rich, but you will earn crypto coin doing nothing and if the coin price raises you could get lucky.
You can download MinerGate here: http://minergate.com
Good luck!
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@minimalpris