Science has backed off a lot on its claim to be 'objective' in the past century, because there is no way to eliminiate the factor of the obersvor/experiencer.
Einstein said this:

"Put your hand on a hot stove for a minute and it seems like an hour. Sit with a pretty girl for an hour and it seems like a minute-THAT"S relativity." !

What this topic of parallel universes really makes me think about is whether some don't experience those already. And here I think we can see the value of 'subjective' i.e. anecdotal data.

The Bible talks about 'being IN the world and not OF it.' The Buddhists and others talk about 'Nirvana'/enlightenment as an achievment of 'non-attachment' to the things of this world.

In my own experiences, I find I have over the years either developed, or more properly discovered, what I call 'the observor', which I feel to be no other than my true self. It looks compassionately/dispassionately at the things and times of my 'other me', my more limited self which still at times gets swamped by emotion. I must also say my observor gets amused at the tangles of 'Rootsie', but the laughter is gentle and kind.

The world as I have always experienced it has become very different for me. I think we can have access to a whole new world of 'information' that literally puts us parallel to the accepted world of reality while we are still experiencing what people call 'reality'.

Maybe the dual wave/particle particle/wave idea is the error. Maybe they are simultaneous, and occupy the same space? I think we are babies in our knowledge of science. And we know that our ideas of 'time' and 'space' are very limited.

When we think of 'parallel universes' it sounds like Star Trek, but maybe developments in the 'physics of consciousness' will show that we already do experience this.

Very cool topic.

Rootsie