- I don't think that was a good reason, even if all of those bitcoins has been mined, but without demand, its all is just for nothing, the simple thing is as long as we have demand, bitcoin will be fine but how long it will keep going on ? People's money has its own limit
Bitcoin's use will play an important role, and the simple fact that it's digital Gold is another benefit. Gold's industrial use is negligible. If it was valued based on that, it would lose over 90% of its value in an instant. The rest of Gold's demand is entirely speculative. Bitcoin is better in almost every aspect. No reason to think that there won't be any demand at a later point.
With Lightning there is an actual currency aspect people can utilize on a daily basis. If that picks up, there is basically nothing stopping it from growing for decades.
- But why merchants still want to reject this one to be applied ?
Not exactly sure what you mean by that, but merchants will adopt Lightning, because it's instant, and cuts out the +3% fees that flows straight in the pockets of greedy financial services such as MasterCard and Visa. Giving people 3% discounts on their purchases through Lightning will definitely attract a whole bunch of new customers, and generate even more revenue.