Quote from: Druiz287 on January 22, 2018, 04:08:14 AM

Quote from: vk985 on January 20, 2018, 01:52:35 PM

Quote from: fabrizeo on January 15, 2018, 11:56:12 AM

Hello,

I just checked the difficulty and it seems to increase a lot lately.

What is the reason behind this?

At this rate and if the price doesn't increase an s9 will not be much profitable by the summer....

I'm struggling whether I should invest in a dozen of S9 but things are not so motivating now compare to sept/oct when i first look into it.

Thanks for your insights.

We can all agree on one thing, everybody and their mother is talking about mining, and it will only be EXPONENTIALLY increasing from here. Current mining difficulty is 2.2 Trillion, and it went up 1 trillion from exactly 3 months ago. So If I was to predict the difficulty rate by end of 2018, considering the exponential factor. I would do it like this:

Apr 20th - 2.2+1.5=3.7 Trillion
Jul 20th - 3.7+2=5.7 Trillion
Oct 20th - 5.7+2.5=8.2 Trillion
Jan 20th - 8.2+3=11.2 Trillion

This makes the average difficulty for the 12 months at 6.7 Trillion.
Being optimistic about bitcoins price, we can say that it's 12 month average will be $30k. After $150 in electricity costs, that will leave us with with an average monthly profit of $300 per month per S9 from now until January 20th, 2019. That is my prediction. Any thoughts?

Economics 101: thinking at the margin. Spend $150, make $300 sounds like a good deal to me. If I could do this ten times simultaneously, I would. But my only concern is the sustainability of these profits. Remember that difficulty is increasing exponentially but so is computing power. So the next generation equipment will be exponentially stronger than the current generation's.

Are you saying that there will be a new Antminer model this year with at least 30 TH/s and cost in the $3k range?