F.2d 1511, 1516 (11th Cir. 1983). "Timeliness" is "not limited to chronological considerations but is to be determined from all the circumstances." Stalhvorth v. Monsanto Co., 558 F.2d 257, 263-64 (5th Cir. 1977). Among the circumstances which must be considered is 2 EFTA00209265 "the purpose for which intervention is