Hi, Fuzzy!
That structured thinking is a format typo.
I already shared it. For my "structured thinking" I use outliners (Tana right now after quite a while using Workflowy) and visual tools such as Miro or Scrintal when the concept is too wide/abstract to use outlining.
My SSOT is always perfectly defined because each tool has the info I know it's inside of it.
You have to also think that many tools act just as satellite apps, intermediate steps to prepare "the final piece".
And I agree, Mem is not there yet for many things, but for others it performs really well.
We'll see what happens in the near future.
Take care!
Cheers!