The DC Universe has been through…a lot. That has been true for quite a while, but especially lately.
Do you know what a "puddler" is? I didn't. I had to go look it up, but here's what I found: It's a term related to a specific step in metallurgy, specifically in the forging of high quality iron.
Every now and again, there is a DC story so massive that it shifts the very fabric of reality. We tend to call those stories "Crises" for a couple of reasons.