"In string theory, all particles are vibrations on a tiny rubber band; physics is the harmonies on the string; chemistry is the melodies we play on vibrating strings; the universe is a symphony of strings, and the 'Mind of God' is cosmic music resonating in 11-dimensional hyperspace," says Professor Michio Kaku of theoretical physics at City College of New York. Right now, string theory is the most viable contender for the "theory of everything.”
Fig 1: Prof. Michio Kaku
According to string theory, the big bang did not begin with a firecracker that threw the masses into deep space. The splitting or joining of two or more universes is how it is stated. The inception of the multiverse concept has been attributed to the string theory's 11-dimensional hyperspace calculations. There are multiple universes as opposed to one single universe made merely of time and space. If one universe splits apart, two or more daughter universes result, which if united would create a larger combined universe.
This notion is, however, simply taken out of context when it is said in a current textbook that "the universe is everything and time and space exist in it." Just the head-scratcher, that is. However, others have taken this idea a step further by questioning what the universe of others might look like if it existed. This has generated many conclusions. We must comprehend how our universe seems to us to respond to that. Let's then apply this idea to multiple universes.
Fig 2: Multiverse Model
Photocredit: https://blogs.scientificamerican.com/observations/long-live-the-multiverse/
The hydrogen and helium found are the same all around the observable Universe, which is 43 billion light years away (radius) or 96 billion light years away (as diameter, with the earth as the centre of observation). Hydrogen found on Earth has the same spectral lines as hydrogen found billions of light years distant. At the same temperature, the properties of electrons observed in the sun are the same on Earth. Every subatomic particle has the same charge. Therefore, the Universe is the same for our purposes of observation, whether it was created by design or by chance. Constants like the Planck constant, the gravitational constants, and the speed of light are constants that apply everywhere. Therefore, the notions would be the same if intelligent aliens from billions of light years distant from us were to create a universal equation. The fundamental Units are the same everywhere, therefore the law would provide the same math and understanding.
Either yes or no, this idea can be extended to multiverses. It relies on the crucial stage of the universe's development. The underlying query is whether the parameters are randomly generated or tightly tuned at the point of formation. If the Universe were perfectly tuned, it would produce a universe exactly like ours. Thus, everything may be the same. As a result, the fundamental rules would still apply in different Universes. But what if things work out differently? Then, even minute parameters would produce a universe that is entirely different from ours. The fundamental forces, constants, and amounts of dark energy and dark matter in the universe may differ from those in our own. As a result, the mathematical explanations of the universe developed by intelligent life would be entirely different. Therefore, the answer will rely on how the Universe was endowed at the time of creation with intrinsic characteristics.
If the Multiverse exists, will there be life?
Knowing that the laws would either be distinct from our universe or the same, life would be clear. The biological evolution would have contributed to altering by the law, and it would look entirely different.
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