But the light is not getting brighter if you follow the JW idea behind it...CT RUssell said that new light would come but would not extinguish old light...it would not replace it...hence adding two candles to a dark room makes it brighter than one as new light enhances the old light.
But what we have in JW land is new light replacing old light...one candle is blown out and another lit...the room does not get brighter if you do this.
Overlapping generations REPLACES the literal generation idea...the literal generation is "blown out" replaced by an overlapping one.
Therefore, CT Russels idea of "new light" is wildly different to what JW's proclaim as new light today and that new idea fails to explain how things are getting "brighter".