Personally, I think the articles is wrong. When all the bitcoins have been mined, there will be a limited number of them, without an increase possible. They will still have value regarding free trade. This means that their value will increase because of people who hoard them, for exactly that, an increase.
As for the time when the bitcoins will all have been mined, the schedule of 4-year halving extends this into the next century, rather than just a decade away as the article suggests.
While it is difficult to determine what will really happen with Bitcoin, I am a little surprised at the author of the article (Natural News) is supporting the idea of a collapse. Not because a collapse couldn't happen, but because Bitcoin embodies the idea of freedom, the thing that Natural News has been fighting for, for a long time.
For the little guy, fiat has already collapsed. Prices of products seem to rise faster than wages. The old supply and demand idea doesn't seem to bring prices down. So, fiat is already lost. All of its bubbles will only show what has already happened, when they burst. Regarding money, seems to me that Bitcoin (and various altcoins) are all that is safe in the world of actual trade.
World fiat is going to collapse. There are no two ways about it. If Bitcoin is still being traded with reasonable vigor at that time, it will soar to unrecognizable heights in value against the collapsing currencies. Bitcoin will be salvation. Hoard some. Don't put your life savings into it, but hoard some. It could go higher than $10,000,000 if enough fiat bubbles burst. And buying groceries with Bitcoin will start during the fiat bubble bursts.