I do think this is a very important topic. Inflation, fed, duration, AA, absolute return, risk...its all in here.
To me, the root question is whether the 30 year bull market in bonds will end. Cause of death could be any number of things but if it does die (particularly if it dies quickly), there should be big ramifications that are potentially long lasting.
A few things always go through my head...
1) The Fed has been price-fixing the most important financial instruments in the world for over a decade.
The price of every other asset in the world eventually finds its way back to the relative risk/reward offered by the 10 year Treasury. Price fixing that asset can't end without a big disruption.
2) Markets are broadly efficient so risk and reward are related. Always.
As we look for higher yields, we have to acknowledge there is higher risk. REITs are a good example. I've always held a REIT fund (SCHH) for diversificaiton & yield. Due to covid, its only yielding 2.8% and has only recently recovered its Jan 1 2018 price level. Ouch. Yes, I bought during those down period consistent with my AA. But still. Ouch.
3) At what point are bonds -- funds or individual -- just the greater fool theory?
If real returns on neutral or negative, then the ONLY way to actually make money on them is to sell them to someone who will buy for an even greater loss. Hmmm.
4) For all that, there aren't really other good options.
Door 1: Hold cash and hope to time the bond implosion. No thanks.
Door 2: Go to 100% equities. Rising bond yields will hit equities even harder.
Door 3: Hold alternatives like REITs and Preferreds. Yes, though risk point should be noted. Ultimately the market prices yield for these assets. Interest will drive those down as well.
Door 4: Bet big on inflation through other assets. Commodities, Gold, currencies, crypto...ugh. I'm not smart enough to go there.
So...I retreat to an AA and do some yield-seeking with Preferreds (PFFD) and taking duration risk on bonds. Hoping that the cumulative returns eventually out-run inflation + the future interest rate correction.