lic ating ▁entities ▁until ▁all ▁available ▁resources ▁are ▁used ▁and ▁all ▁vac ant ▁nich es ▁are ▁taken . ▁Thus ▁the ▁title ▁of ▁the ▁chapter . ▁ ▁Daw kins ▁tries ▁to ▁dist ill ▁ten ▁mil est ones ▁from ▁the ▁history ▁of ▁the ▁only ▁one ▁rep lication ▁bomb ▁we ▁know ▁of , ▁life ▁on ▁Earth . ▁He ▁stri ps ▁any ▁local ▁conditions ▁peculiar ▁to ▁Earth ▁from ▁these ▁mil est ones ▁which ▁he ▁calls ▁th resh olds , ▁in ▁the ▁hope ▁that ▁these ▁th resh olds ▁will ▁be ▁applicable ▁to ▁an ▁al ien ▁evolution ▁in ▁an ▁al ien ▁planet ary ▁system . ▁ ▁From ▁the ▁starting ▁point ▁of ▁the ▁Rep lic ator ▁Th reshold , ▁we ▁may ▁eventually ▁reach ▁the ▁higher ▁th resh olds ▁of ▁Cons cious ness , ▁Language , ▁Technology , ▁and ▁Radio . ▁The ▁final ▁threshold ▁is ▁Space ▁Tra vel . ▁In ▁reaching ▁the ▁moon , ▁we ▁have ▁hardly ▁made ▁it ▁past ▁the ▁front ▁door . ▁ ▁Re ception ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Category : 1 9 9 5 ▁non - f iction ▁books ▁Category : Basic ▁Books ▁books ▁Category : Book s ▁about ▁evolution ▁Category : Book s ▁by ▁Richard ▁Daw kins ▁Category : English - language ▁books ▁Category : Gen etic ▁gene al ogy <0x0A> </s> ▁Alb ay rak ▁is ▁a ▁Turkish ▁surname . ▁Notable ▁people ▁with ▁the ▁surname ▁include : ▁▁ ▁Ber at ▁Alb ay rak , ▁Turkish ▁business man ▁ ▁Er han ▁Alb ay rak , ▁Turkish ▁footballer ▁ ▁E ren ▁Alb ay rak , ▁Turkish ▁footballer