How could two alternate realities "blend" at a single point in space time?

From:

https://en.wikipedia.org/wiki/Multiverse

The multiverse (or meta-universe) is a hypothetical set of various possible universes including the universe which we live in. Together, these universes comprise everything that exists: the entirety of space, time, matter, energy and the physical laws and constants that describe them. The miscellaneous distinct universes within the multiverse are called the "parallel universes," "other universes" or "alternative universes."

And from:

https://en.wikipedia.org/wiki/Many-worlds_interpretation

Many-worlds implies that all possible alternate histories and futures are real, each representing an actual "world" (or "universe"). In layman's terms, the hypothesis states there is a very large, perhaps infinite, number of universes, and everything that could possibly have happened in our past, but did not, has occurred in the past of some other universe or universes.

I'm using those definitions/explanations here because they put into words my thoughts better than I could right now.

So, let's say we take the above described concepts as real, with those as a jumping off point I am trying to create a place, some point in space/time, where two of the universes from that infinite bunch (ours and another) are blending into one another without either being destroyed. Imagine these two realities are caught in the same space/time but instead of annihilating one another they are "blending", mixing, and creating something new, something that is a little of both.

My sci-fi explanation of this is that an alien race with the tech to warp space time was conducting an experiment that they hoped would take them to one of those other realities. Instead it mistakenly brought another reality closer to ours, but not fully, so there's "blending" going on at this point of space/time.

I want my space explorer characters to achieve some kind of understanding of what might cause this to be possible. Any thoughts?

I realize that some hand waving will come into play, but I want to give readers something that at least sounds plausible. Maybe something that scientists are really theorizing(?).

EDIT: Just adding some food for thought:

A) Dark Matter cannot be observed except we know its there because of its gravitational effects. So isn't that kind've like another dimension existing right here within ours without any annihilation?

B) Neutrinos can pass through matter because they have little mass and no charge. Couldn't something similar apply here?

posted over 6 years ago

Len‭

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