Last month the US yield curve inverted, with the yield on 10-year Treasury bonds dipping beneath the yield on 3-month Treasury bills.
In recent weeks, investors have fixated on the inversion of several sovereign yield curves, most notably the US Treasury curve.
A troubled Brexit with Parliamentary stumbles and deadline extensions, while the original departure date has come and gone.
Gold and silver investors have faced a relentless headwind of hawkish forward guidance from the US Federal Reserve for around six years.
The European Central Bank (ECB) has been much more dovish this year as macroeconomic conditions in the eurozone have quickly deteriorated.
Investors are often drawn toward the 'next big thing' and the allure of rapid growth that comes along with it.
The recent drop of the 10-year German bund yield into negative territory has left many bond investors scratching their heads.
Growth in the eurozone is slowing to stall-speed. The most recent raft of indicators point to weak manufacturing activity, with German data at lows last seen in 2009.