This sounds like weak Ni since "thinking something through" is essentially imagining the likely consequences of actions, which is related to Ni.Jumping head first into doing something not having taught it through.
Yes, this is true. "Dostoyevsky prefers that his partner would express his opinion not in the form of ruminative contemplations and reflections, but as direct, explicit, accurate formulations, and would give him concrete advice and proposals on what he should do."Seeking clarity and explaining on how to do something
Perhaps I'm overextending here, but your posts where you briefly explain something for no apparent reason (like this one) seem to usually be done for the purposes of proving that you are XYZ. Is your declarative statement here secretly a call for external information, making us think you're Te seeking?
EDIT: I was going through older posts and wanted to update this one. I stand by my claim that "thinking something through" has to do with Ni. However, I do think that the statement has both a colloquial and a literal interpretation. My original comment has more to do with the colloquial saying since heeding caution and calling for prudence is often done by saying something along the lines of "think it through". Those are Ni themes. Literally interpreted, the statement could be related to Ti since "thinking something through" could be seen as logically deducing the consequences of a system.