Your argument is based on the statement that difficulty keeps rising. While historically this is true, it is not a guarantee of future patterns. Yes, we have seen some insane rises in difficulty, but that is due to a number of factors including wider acceptance, general knowledge of crypto-currencies, incredible hardware advances, etc. I don't think we can state as a fact that difficulty will forever continuously rise.
Just wondering... I thought that the difficulty levels where built in to the whole pattern... or design of bitcoin and mining...
I thought that it was set well in advance every level?
Is it possible that it will stop going up??
I figured for sure within a few months I would be pushed out because of this and the expenses...?
Running 4 TH for a few months now and it has gone way down.....
It can go down if the hashrate drops. See the table at the bottom, difficulty did go down twice before.
https://bitcoinwisdom.com/bitcoin/difficultyThis will only happen if the profit that you can get out of buying new mining equipment is less than the total return (or estimated speculative return). Or if the total profit is less than the cost to run the unit (loss situation), then people will start turning off their machines.
Already a lot of the older hardware (BFL, some of those USB miners) have been shut off as they are losing money to run