>>10646725 >WE'RE always CHAnGinG bOUNdARIes! wherE dOEs An elBoW sTaRT Or EnD? WhEN DoES A yOuth BeCOmE an ADUlT? WHERe DOeS aN oCeAN chANge intO A Sea? why MUsT Our minDs keEP DraWinG lineS to StrUcTUrE oUr reAliTY? The ANsWer is thAT unleSs WE Made thOSE MInd-ConSTRucTed BoUNDARieS, We'd Never seE Any THInG aT aLl! THIS IS becaUSe wE RArelY SEE aNytHing tWicE as ExACtly The sAMe. eaCH TIMe We'rE almOSt CeRTaIN To Be loOkINg froM A soMeWhaT DiFfEReNt view, PERhAps frOM neaREr or FARTHER, HIgHer OR lowEr, iN a DifferEnT CoLOR or shADe of LighT, or AgainSt A dIFFeRENt bACkgroUnd.