▁than ▁her d ▁animals , ▁f lock ing ▁together ▁whenever ▁the ▁world ▁becomes ▁un com fort able ▁… ▁I ▁am ▁not ▁one ▁of ▁those ▁people . ▁If ▁I ▁had ▁a ▁mot to , ▁it ▁would ▁probably ▁be ▁H erd ▁th ither , ▁me ▁h ither ." ▁ ▁His ▁prem ature ▁death ▁at ▁the ▁age ▁of ▁ 4 4 , ▁On ▁June ▁ 1 7 , ▁ 2 0 0 9 , ▁was ▁caused ▁by ▁a ▁massive ▁ble eding ▁ul cer , ▁related ▁to ▁ul cer ative ▁col itis , ▁which ▁he ▁was ▁diagn osed ▁with ▁about ▁ 1 5 ▁years ▁before ▁his ▁death . ▁ ▁Works ▁ ▁S G ML ▁ ▁Nag g um ▁was ▁Chair man ▁of ▁the ▁S G ML ▁S IG hyper , ▁the ▁S G ML ▁special ▁interest ▁group ▁on ▁hyper text ▁and ▁multimedia ▁( see ▁Hy Time ). ▁His ▁technical ▁comment ary ▁on ▁ISO ▁ 8 8 7 9 : 1 9 8 6 ▁in ▁the ▁arch ives ▁of ▁comp . text . sg ml , ▁in ▁terms ▁of ▁both ▁high ▁quality ▁and ▁she er ▁mass , ▁was ▁especially ▁appreciated . ▁ ▁L isp ▁ ▁The ▁Long , ▁P ain ful ▁History ▁of ▁Time , ▁an ▁article ▁in ▁which ▁Nag g um ▁describes ▁how ▁the ▁concept ▁of ▁universal ▁time ▁and ▁time ▁zones ▁can ▁be ▁handled ▁well ▁in ▁L isp ▁code . ▁ ▁U sen et ▁▁ ▁Erik ▁contributed ▁an ▁enorm ous ▁number ▁of ▁post ings ▁to ▁U sen et . ▁ 1 4 , 3 0 0 ▁of