There is no way to know with certainty when the next large decline will occur, but mathematically there are a lot more years of RE appreciation than depreciation. 

Mathematics is a very logical subject... with theorems and postulates and structures that follow certain rules...

That's is a simple mathematical setup that tells one without doubt, a SIGNIFICANT INCREASE in unit costs is coming. 

Look,This is how mathematics works.Proof theory.In order to prove anything, it is useless to list a million examples showing what you are claiming to be true.

Mathematically speaking, it depends how much your personal debt is costing you. 

This is a complex mathematical/economical point that I do my best to explain in this article.

Well that defies Mathematics... 

if you want proven mathematic formulas how to pay off 30-year loan in 10 years, I'll share the tips, $100/hr ?

Many persons, myself included, warned people to ACT UPON THE OPPORTUNATIES during those times with all haste because we knew with mathematical certainty it would not last.   

We know with mathematical certainty that's a unique time opportunity because with reproduction costs so much more, it's only a time cycle as that satellite market pricing will rapidly appreciate, because it's below "gravity".