From the article:
At the current rate of growth, bitcoin will surpass gold in 4 years and the US dollar in 8 years, making El Salvador's efforts pay off, and making the country one of the richest and most prosperous in the world.

Let's ignore extrapolation no matter how funny it is, also the fact that the author speaks in 4 years increments which is not the best choice right now, cause it gives only a 3x every 4 years so, so just no, and let's focus on a different thing, called logic.
If Salvador will become the richest country in the world with 1600 bitcoin, what will the other countries be worth since well, their citizens will have the rest of the coins!!!

So Salvador will need to hoard
moar coins, but for that, it needs $, which they don't have!
Everything in the article looks like another bla-bla-bla and a vision of the world through pink glasses. El Salvador will be rich if they hold and Bitcoin price goes up.
The funny thing is that the price won't grow unless more people are buying, so Salvador in order to become rich needs the wealthier countries and their population to provide the cash inflow, otherwise, they will end with the same value even after 20 years. And if others do purchase, we're back to square one where they will be just as wealthy if not more. It's a game where you can't be rich alone and not without some serious help.
It doesn't make a lot of sense that article, there are single people who own more bitcoins than ES, does anyone think that there will be individuals worth more than the US or China? And what about Saylor and Microstrategy? Don't they have more than 100k BTC? Way way more than ES.
Yeah, some individuals will have more wealth than the entire world, and now imagine they will sell! Oh wait!
