Sounds about right for an entry level finance class, but that's where the accuracy ends. Real life soundly rejects
"Basically the prices of Treasuries are determined by Supply and Demand and Demand is in part determined by investor’s expectations as to the future.
"So, yields could be controlled by the Fed (the government) if the Fed targeted Treasury yields, but the Fed does not target Treasury yields it targets the Federal Funds rate."
The article clearly stated the Fed is setting the yield. They have a target yield and will buy up whatever treauries they need to artificially push the yield to that point. The Fed has already stated that is their policy and their intention and that they intend to continue with that policy. Supply and demand have nothing to do with bond yields, which has been pointed out to you more than once.
"Total Recall, are you saying that if I was to buy a 30 year Treasury with a 4% yield that I would really be earning a 10% yield (4 + 6)?
The correct answer is buying at a 4% yield will yield 4% at a risk profile