I think for humans our memory is why we only feel connected to a particular causal timeline of consciousness. For myself I am conscious of the present moment a

I think for humans our memory is why we only feel connected to a particular causal timeline of consciousness. For myself I am conscious of the present moment and of my memories and of my imagination. For us to be conscious of our experiences in other universes or timelines we would need a way to know what those experiences are like. In our universe memory is a cheap way of recording what the causal past was like vs. needing to compute/simulate what happens in other timelines with enough accuracy to be as fully conscious of it as we are of our memories.