Im a newbie and have a question:
1) If the difficulty increases exponentially.
2) If in the coming months "halving" will reduce to half the miner's reward.
3) If the projections of various spreadsheets indicate that it is not currently profitable mining.
How will continue to operate the system?
A group of elite miners will keep mining, anothers will keep running nodes to use the services, we can wait high prices, high difficulty, each time less miners,more services nodes until reach the limit only big corporations will does mining.