I like your idea, but we can’t prove it on our level of knowledge. One of the reasons of it is that we can’t say what is the “now” moment in casually remote regions of the Universe, and could timeless physics help us here. Also such exponential increase may have its own observation selection effects, its own Doomsday argument, like that we are probably now in the last moment of all this multiverse existence.
I like your idea, but we can’t prove it on our level of knowledge. One of the reasons of it is that we can’t say what is the “now” moment in casually remote regions of the Universe, and could timeless physics help us here. Also such exponential increase may have its own observation selection effects, its own Doomsday argument, like that we are probably now in the last moment of all this multiverse existence.