This is new to me. I thought my machine is getting weaker and giving me lower mining hash rate. I was wrong. It's the increased size of the dag epoch. When I first started I was getting about 26.5 mh/s with my AMD RX 480. Today I am getting 23.7 mh/s with the same machine and settings. That's a significant drop! Current dag epoch is 148. I have benchmarked my machine and found that on epoch 199 I will be getting around 15 mh/s. and that doesn't look viable!! Sooner I'll be paying more electricity bills than my earning. and Proof of stake doesn't seem so lucrative to me yet. What do you guys think?