Can "at all" be used in an affirmative sentence? [duplicate]
Solution 1:
I think the author of the text meant to write
The real risk of cbdcs to the financial system may be that they eventually precipitate a new kind of run: promoting the doubt/question whether banks need to exist "at all".
Yes, at all can be used with an affirmative verb in direct and indirect questions:
Do you know her at all?
I wonder if/whether she read my essay at all.
Hope this helps.