Earlier quoted context omitted.
The thing to think about is convexity. If everyone is maxing out their budget when rates are 2%, it causes a huge problem for their personal budget when rates go up to 4%. If the rate was originally 10% like a few decades ago, each rate increment would matter a lot less.
Yes, we could be in for a lot of pain if inflation and interest rates rise over the coming years.
This is true, but I think unlikely ...
All macro trends - especially demographics and birthrates - point to large deflationary headwinds. The little bit of inflation that we experience currently is the result of massive manipulations like quantitative easing and related policies. Just look at the price of oil ... even the peak 2018 price is quite low when compared against the last ten years.[1]
Nobody can know how this will pan out, but I think a reasonable guess is that as QE is allowed to unwind we experience recessionary forces that we are no longer willing to accept or able to withstand - given the increased fragility and interconnectedness of our economies. And so we will see QE3 and QE4 and so on, with related ZIRP[2], until we finally see a deflationary collapse.
That could play out over decades. I don't know how you could shrewdly prepare for such a sequence of events, since the correct way to prepare for deflation is to have liquid, cash assets and those assets would be almost completely idle during the ZIRP period (like the one we are living in).
I suspect the only way we would see real inflation is if political actors made political decisions to massively overshoot the QE (and related) policies. Even then, we would not see high interest rates unless some later actor decided to "correct" that inflation.
[1] https://www.macrotrends.net/1369/crude-oil-price-history-cha...