The QE during credit crunch was far bigger then where we are so far.
That was an problem that originated in the finiancial system.
This is some what less scary in that it's an economic activity depression. Its should be easier to bounce back...in theory.
The money guns are multiplying and growing with amazing speed.
I don't think we have ever seen money printing on this scale, and I'm not sure that anyone really knows where this will lead.