I'm no macroeconomist, but I would agree the signs have been building to a crescendo, very reminiscent of 2005-2007 feel when more and more voices were sounding

I'm no macroeconomist, but I would agree the signs have been building to a crescendo, very reminiscent of 2005-2007 feel when more and more voices were sounding the alarm. In brief I would mention: credit card & student debt bubble; housing market re-inflation to pre-crash levels; stock market at new highs and a decade since the last recession; being in ZIRP and pushing on a string for so long we're out of monetary policy ammo and have a near total lack of political willpower for real fiscal policy changes, leading to the lack of much apparent recovery or health in the real economy outside a few sectors; the worsening inequality continuing to hollow out the middle class; the ongoing / accelerating wave of automation; approaching shark-jump territory in tech with a lot of signs the zirped-VC is drying up. The whole "main street" economy has a Weekend at Bernie's feel of a dead guy being dragged around by some people who don't want the party to stop.