If the whole world is used to 3% and the whole world is making 1.4%, the whole world starts buying junk.

Right, so what the world needs to do is ask the question "Why are we getting 1.4% when we're used to getting 3%?" Because this is the same shit that fueled the commercial real estate bubble in the 80s, the dotcom bubble of the 90s, and the residential real estate bubble of the 2000s. The main answer is that we haven't had any real productivity growth basically in my entire life (and I'm 35). This despite the fact that all sorts of machines can do shit now, humans have PCs that help them find whatever info they need instantly, etc. Productivity should be skyrocketing, and given that productivity increases are the main thing that expands the economy, productivity stagnation is killing us all.

Saint Milton used to say if you want more of something, tax it less, and if you want less of something, tax it more (an obvious anathema to today's worshiper of Friedman, since the apparent number things that should be taxed more is 0). So it would seem obvious (if we take his sage advice) that the tax code is forgiving of bubble investing and doesn't encourage real business investment (in productivity, i.e. making things). This is supported by the fact that pretty much every major corporation is essentially a finance company, regardless of what they actually do as a company. Hypertrophy of the finance sector is suffocating all of us.

Although we may disagree about how bad it will hurt when the winds pickup, I certainly wouldn't disagree with your characterization of the tech industry as a house of cards writ large. If it's a doomsday scenario, I can only hope that we have a reasoned response to the crash. The GOP is trying mightily to accelerate this scenario with their laughable tax 'plan'. What we really need are structural changes in the way we do business (with an eye toward what a functional, inclusive economy looks like), and rebuild the framework from first principles. Instead what we're getting is a massive national credit card debt fueled trophy for everyone, but really, really bug trophies for job creators.