“Here’s a question from a layman: if untold trillions of new universes are being created all the time, where is all that energy coming from to create them?”
Well, you’ve got the same problem with a single world: Where did the energy for our ‘single’ Universe when ‘it was created’ came from?
The problem here is that you assume that universes are created which did not exist before; in this case you indeed need to take the energy from somewhere. But as I understand, they never did not exist (beware of double negation!).
They already existed before the split took place in your personal memory.
But somehow I still can’t buy into this thing; where is the symmetry?
Why do splits happen into the future, but not into the past?
Of course, we evaluate the past according to the information we retrieve over time (that’s the whole point of Bayes/Markov, isn’t it?).
In this way you can say, that with every bit of information/evidence, our memory makes a split into the past.
In this way ‘fresher’ memory gets mixed up with ‘decaying’ memory and thus we get a different/more diffuse image of the past.
But it doesn’t sound the same like the ‘future’ splits. We don’t have a fresh memory of the future; taking the example of lotteries. We don’t remember their outcome seconds before.
Splits happen forward in time for the same reason a glass which has fallen and smashed on the floor doesn’t spring back up and spontaneously reassemble itself. And these “universes” are really just isolated amplitude blobs in the total, timeless, wavefunction: they aren’t created; rather any amplitude blob roughly factorizing as a “world” will eventually decohere into several smaller amplitude blobs also factorizing as “worlds” which as the wavefunction further evolves with time do not interact (i.e. they interact about as often as that glass reassembles).
“Here’s a question from a layman: if untold trillions of new universes are being created all the time, where is all that energy coming from to create them?”
Well, you’ve got the same problem with a single world: Where did the energy for our ‘single’ Universe when ‘it was created’ came from?
The problem here is that you assume that universes are created which did not exist before; in this case you indeed need to take the energy from somewhere. But as I understand, they never did not exist (beware of double negation!). They already existed before the split took place in your personal memory.
But somehow I still can’t buy into this thing; where is the symmetry? Why do splits happen into the future, but not into the past?
Of course, we evaluate the past according to the information we retrieve over time (that’s the whole point of Bayes/Markov, isn’t it?). In this way you can say, that with every bit of information/evidence, our memory makes a split into the past. In this way ‘fresher’ memory gets mixed up with ‘decaying’ memory and thus we get a different/more diffuse image of the past.
But it doesn’t sound the same like the ‘future’ splits. We don’t have a fresh memory of the future; taking the example of lotteries. We don’t remember their outcome seconds before.
Splits happen forward in time for the same reason a glass which has fallen and smashed on the floor doesn’t spring back up and spontaneously reassemble itself. And these “universes” are really just isolated amplitude blobs in the total, timeless, wavefunction: they aren’t created; rather any amplitude blob roughly factorizing as a “world” will eventually decohere into several smaller amplitude blobs also factorizing as “worlds” which as the wavefunction further evolves with time do not interact (i.e. they interact about as often as that glass reassembles).