IMHO, the falling rates from 1982 (which are the main reason behind the bull markets - stocks and bonds - ) , are directly linked to two things : globalization and capital concentration. On a background of technological progress.
Globalization gave us cheap stuff and tremendous growth. But all around the world, for various reasons, country by country, change takes its toll. For globalization, coupled with technical advances, generates inequality and tensions. Change always does.
Hence capital concentration, and suddenly, lots of saving.
All around the world, people are fed up with both. So much so that the USA elected the ultimate ironic icon : an anti-trade billionaire...
If that doesn't smell top...