So what am I doing wrong?

#include "colors.inc"
#include "textures.inc"
#include "stones.inc"
#include "metals.inc"

//global_settings { max_trace_level 12 }


//background {Black+Blue/5}

sphere {<0,400,0>,13
        rotate<0,0,0>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,20>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,-20>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,40>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,-40>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,60>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,-60>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,80>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,-80>
        pigment {White}
        }

sphere {<0,400,0>,13
        rotate<0,0,100>
        pigment {White}
        }
sphere {<0,400,0>,13
        rotate<0,0,-100>
        pigment {White}
        }



#declare f=.084;    // was 0.08
#declare R=399;



#declare funk=

isosurface {          function
          {noise3d(x*f,y*f,z*f)}

         accuracy 0.01
         threshold 0.0

         bounded_by {
         sphere{0,500*(.40+clock)}
                    }
        rotate <0,0,90>


//pigment{functionabs((noise3d(x*2,y*4,z*4)*.875)&(noise3d(x*4,y*2,z*4)*.875)&(noise3d(x*4,y*4,z*2)*.875))
poly_wave}
        pigment{Green}
        finish{ambient 0.20 reflection .0}
        normal {crackle}
        }

//object {funk }

camera {
  location <0,170,-400>*3.1
  look_at <0,100,0>
  angle 48
}


light_source{<0.005,0.00081,0.00081>  color White*14
media_interaction on}

  /*
  light_source {  <0,0,0>
    color White*14
    spotlight
    radius 90
    falloff 89//28
    tightness 1
    point_at x

  }
    */
#declare j=10;


media {                         //media scattering
  intervals 10
  scattering { 2, red 0.05 blue 0.001 green 0.02}
  samples 1, 10
  confidence 0.9999
  variance 1/1000
  ratio 0.9
}

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