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but when it reach to that point, I believe the water level must rise up alot.
, v$ L2 B# t( o: E4 Y2 DTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Eventually, there will not have enough space for people to stand.
! Y6 H! d$ W7 r+ z7 @TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。Oxgyen supply will become a critical problem of building a 2000 floor building.
- x  {* h( n4 m. p5 i9 b' q( stvb now,tvbnow,bttvbWhen the Earth gets more crowded, the oxygen will not be enough to supply to all the man-kind.
$ U) x: S+ `9 y1 {! VAT a result, I think human will never going to reach that point.