go so far as to

go so far as to do something

also go as far as to do something
to be extreme in talking about or doing something They went so far as to threaten violence if we did not pay them.
See also: far

go so far as to

Also, go as far as to. Proceed to the point of doing something. For example, I wouldn't go so far as to call him incompetent, but he does need supervision, or Would she go as far as to sell the house before she's found another?
See also: far
References in periodicals archive ?
Deleuze and Guattari go so far as to suggest that smooth space is not preferable in and of itself.