Some amount of interpretation is inherent in the process of trying to make sense of prophecy written in symbolic language.
The issue is that many Christians, if not most, tend to believe in a literal interpretation of the bible. If ever there was a book that seems symbolic, it would be Genesis. Yet, most Christians maintain a rigidly strict and literal interpretation.
As for the OP's point, I see no compelling evidence to connect Revelation to microchips or anything of the sort.
It also means that we're going to constantly hear fanciful predictions from those who think the end is next week if not sooner. Buz seems sure that we are living in the end times.
Every Christian thinks they're living in the End Times. That's practically the standard modus operandi. So far, every one of them has been wrong, to include the apostles themselves. If we're going to look at that from a statistical point of view, that's 100% error. That's not exactly a very compelling record.
Based on that he predicts a course for future events. If all currencies do not fail and a global currency is not introduced, then Buz will be proven wrong.
Global currencies could fail at any time without bowls of wrath being poured out on the earth and harlot's riding on dragons. In fact the way the World Banks and their subdivision operate on interest-laden, fiat currency, it would not surprise me at all if we do have an economic meltdown.
"Reason obeys itself; and ignorance submits to whatever is dictated to it" -- Thomas Paine