WTF Bitcoin has to do with Swift's private blockchain again?
See topic title. You started about SWIFT. Regardless of that, it's at the core of blockchain technology that it can't do many transactions per second. It's not only bitcoin, it's blockchain in general that's unsuitable for payment systems. Exactly like the author describes in his article.
The fact is that bitcoin can not be a means of payment at all, especially if you look at price fluctuations in the market, it just outraged. In addition, many members of society will not be able to use bitcoin in real life and not only because of their limited knowledge, but also because of technical capabilities.