The article appears to confuse several different mechanism, that all would manifest in inflation. On one hand there is the expansion of the monetary base after

The article appears to confuse several different mechanism, that all would manifest in inflation. On one hand there is the expansion of the monetary base after the financial crisis, that never ended up as price increases because the money got stuck in the stock market and businesses increase prices when they believe their customers can pay more, that is when wages rise. On the other hand, what we are seeing right now is the market adjusting to a covid economy, people suddenly need webcams, better laptops and office chairs and consequently these products rise in price because there are not enough of them. Now, in the second case the central bank can't do much about the inflation, because it is a production problem, not a monetary problem.