▁delivered ▁a ▁T ED x ▁T alk ▁entitled ▁" Are ▁We ▁the ▁Ang els ▁of ▁the ▁Earth ?" ▁in ▁C ul ver ▁City , ▁California . ▁ ▁References ▁▁ ▁Category : Art ists ▁from ▁Virginia ▁Category : American ▁women ▁artists ▁Category : Year ▁of ▁birth ▁missing ▁( l iving ▁people ) ▁Category : L iving ▁people <0x0A> </s> ▁__ NOT OC __ ▁John ▁D . ▁Harris ▁is ▁a ▁computer ▁programmer , ▁ha cker ▁and ▁author ▁of ▁several ▁ 1 9 8 0 s ▁At ari ▁computer ▁games . ▁His ▁impact ▁on ▁the ▁early ▁years ▁of ▁the ▁video ▁game ▁industry ▁are ▁chron ic led ▁in ▁the ▁book ▁H ack ers : ▁Hero es ▁of ▁the ▁Computer ▁Revolution . ▁ ▁His ▁love ▁for ▁the ▁At ari ▁ 8 - bit ▁computers ▁led ▁him ▁to ▁creating ▁several ▁popular ▁games , ▁perhaps ▁most ▁of ▁all ▁F rog ger , ▁which ▁by ▁the ▁end ▁of ▁development ▁had ▁been ▁written ▁from ▁scratch , ▁twice . ▁The ▁reason ▁for ▁this ▁is ▁that ▁his ▁entire ▁back ▁catalog ue ▁of ▁development ▁tools ▁and ▁libraries ▁he ▁had ▁developed ▁were ▁st olen ▁at ▁a ▁game ▁developer ▁conference ▁at ▁which ▁he ▁was ▁present ing . ▁The ▁delay ▁in ▁writing ▁the ▁game ▁also ▁led ▁to ▁comp lications ▁between ▁Harris ▁and ▁his ▁employ er , ▁Ken ▁Williams ▁( Direct or ▁of ▁Sierra ▁On - Line ). ▁ ▁During ▁John ' s ▁time ▁at ▁Sierra , ▁he ▁became ▁one ▁of ▁the ▁most ▁influ ential ▁young ▁developers ▁in ▁America , ▁at ▁ 2 4 ▁years ▁of ▁age ▁he ▁was