What does this have to do with what I said though ?
This means even with continuous exponential growth the miners are still far behind last year's ATH.
Actually they arent. Prices would have to be a lot closer to last ATH for mining to be profitable (at least for "normal" people buying devices).
I'm sorry to say but it is no longer a "normal" people game.
The reason I stated the estimate of 300$ is that even at today's price, industrial mining rigs can still churn out profits.
That's all that matters. You argued that at 500,000$/coin the cost of mining would be "just" below. I demonstrated that it can and will be dramatically below.