The True Science of Parallel Universes
minutephysics・5 minutes read
Physicists distinguish between the "observable universe" and the entire universe, with the concept of the Multiverse encompassing various models like Bubble universes, Membranes, extra dimensions, and the many-worlds theory, each offering unique explanations for the universe's existence and structure. While the Bubble universes model suggests hidden parts of the universe, the many-worlds hypothesis posits that all potential outcomes are real, although experimental evidence for this idea is currently lacking.
Insights
- Physicists often refer to the "observable universe" when discussing the universe, highlighting the distinction between what we can see and the entirety of the universe.
- The concept of the "Multiverse" in physics encompasses Bubble universes, Membranes with extra dimensions, and the many-worlds theory, each offering unique explanations for the universe's structure and potential realities.
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Recent questions
What is the difference between the universe and the observable universe?
Physicists informally use "universe" for the observable universe, the part we can see.
What are the three proposed physical models for the Multiverse?
The Multiverse includes Bubble universes, Membranes with extra dimensions, and Many-worlds.
How does the Bubble universes model explain the existence of our universe?
Bubble universes suggest unseen parts of the universe with specific physical laws.
What does the many-worlds hypothesis propose about alternate timelines?
The many-worlds hypothesis suggests all possible outcomes occur in branching timelines.
Is there experimental evidence supporting the many-worlds hypothesis?
Currently, there is no experimental evidence supporting the many-worlds hypothesis.
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The Multiverse is real. Just not in the way you think it is. | Sean Carroll
The Institute of Art and Ideas
Should we abandon the multiverse theory? | Sabine Hossenfelder, Roger Penrose, Michio Kaku
The Why Files
Many Worlds Theory: You're in a Parallel Universe | Can You Visit Your Other Lives?
Summary
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"Exploring Multiverse: Beyond Observable Universe"
- Physicists often use the term "universe" informally when they actually mean "observable universe," which is the part of the whole universe that we can currently see.
- In physics, the term "Multiverse" refers to three distinct proposed physical models for the universe: Bubble universes or baby black hole universes, Membranes and extra dimensions, and The many-worlds picture of quantum mechanics.
- The Bubble universes model suggests that there are other parts of the universe so far away or inside black holes that we cannot see them, aiming to explain the existence of our universe with specific physical laws.
- The many-worlds hypothesis proposes that every possible alternate timeline for the universe is real, suggesting that all possible outcomes occur in an ever-branching manner, although there is no experimental evidence yet for this model.
