Antonin Scalia,
Lujan v. National Wildlife Federation…
“ After the time for filing has expired, however, the court (again "for cause shown" and "in its discretion") may extend the time only "upon motion." To treat all postdeadline "requests" as "motions" (if indeed any of them can be treated that way) would eliminate the distinction between predeadline and postdeadline filings that the Rule painstakingly draws. Surely the postdeadline "request," to be even permissibly treated as a "motion," must contain a high degree of formality and precision, putting the opposing party on notice that a motion is at issue and that he therefore ought to respond. ”
