One key reason to expect a fairly buoyant stock market is that the Fed needs to continue normalizing, and big problems with the stock market would throw a wrench into that. To reach their goal, the Fed needs a rate hike in Dec and then three more in 2019. Meanwhile, the process of Fed balance sheet normalization (via QT) will continue at $600 bil/year, and will take over 3 years to get the Fed's balance sheet back under $2 trillion. So it's in the Fed's interest to have stable markets.
According to Rickards, the only things that will prompt a pause in normalization are - 1) stock market drops over 15%, 2) economy starts to really tank (GDP, umemployment, etc). So the Fed has a strong incentive to keep the stock market and economy buoyant and stable.
On the other hand, there may be other agendas that take a higher priority. I can think of a few possibilities (like the SDR scenario), but who knows. One area that has me puzzled right now is this Q-anon phenomenon, which is obviously a Deep State operation, but not sure exactly what they're up to.
