True the quantification of the slope is arbitrary, but did you know that not being able to extract salient information is a either a sign of being an ego offended Millennials smartass, poor reasoning, and/or lack of pragmatic social skills?  



A consistent non-downward slope for 1.25 years is not meaningless, which is obviously the point. I wasn't writing the post for consumption only by physicists and mathematicians.

Note to be more mathematically accurate, I will acknowledge that even "consistent" is arbitrary, because we could choose a logarithmically scaled y-axis instead. Yet then we can even get into the fact that we are looking a chart not weighted by volume, that the wealth effect is illusory, and that expectations are all that matter, etc, etc, etc..

In other words, if you don't like bullshit, then don't speculate. Stick to mathematics, which btw has its foundation in arbitrary bullshit axioms (so what if the system is internally consistent ... just like my navel). You see our entire existence is arbitrary. Now it mathematically must be... do you know why? Do you understand why the speed-of-light must be arbitrarily quantifiable else nothing could exist?