Lift 0 note: everything finite shrinks to the south pole

sphere/index.html

@@ -135,7 +135,7 @@ function build(){
   document.getElementById('note').textContent=(!showSphere?'The plane on its own: the yantra and its inversion in the outer circle. ':'')+(mode==='stereo'
    ?'Straight sides lift to circles through the top pole. Concurrences are kept exactly; only curvature changes.'
    :'Straight sides lift to great circles (central projection), the Kulaichev–Rao spherical form. Lift → 0 is the flat limit.')
-   +` Yantra rim at ${deg.toFixed(1)}° from the bindu pole.`+(lift===0?' At zero lift the whole yantra shrinks into the bindu at the south pole, and its inverse fills the rest of the sphere.':'')+(mode==='stereo'&&lift>1e6?' The rim has closed onto the north pole: 0 and ∞ hold the bindu and its dual.':'')+(mode!=='stereo'&&lift>20?' Great circles cap at the equator; switch to stereographic to reach the north pole.':'');
+   +` Yantra rim at ${deg.toFixed(1)}° from the bindu pole.`+(lift===0?' At zero lift every finite point, the yantra and its inverse alike, shrinks into the bindu at the south pole; only infinity stays north. It mirrors lift ∞.':'')+(mode==='stereo'&&lift>1e6?' The rim has closed onto the north pole: 0 and ∞ hold the bindu and its dual.':'')+(mode!=='stereo'&&lift>20?' Great circles cap at the equator; switch to stereographic to reach the north pole.':'');
 }
 function resize(){renderer.setSize(W(),H());cam.aspect=W()/H();cam.updateProjectionMatrix()}
 addEventListener('resize',resize);resize();build();