Can I ask the point of this podcast? To promote string theory?<br><br>Me (who graduated 3rd grade):<br><br>1D, 2D, 3D are spatial<br><br>4D, 5D, 6D are temporal <br><br>7D, 8D, 9D are spectral <br><br><br>1D, 4D, 7D line/length/continuous <br><br>2D, 5D, 8D width/breadth/emission <br><br>3D, 6D, 9D height/depth/absorption