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Matrioshka Brain

https://bigthink.com/technology-innovation/are-we-living-inside-a-matrioshka-brain-how-advanced-civilizations-could-reshape-reality?rebelltitem=5#rebelltitem5

Stars turned into layers of supercomputers, repeat.

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Why the Many-Worlds Interpretation Has Many Problems 17 SHARE

https://www.quantamagazine.org/why-the-many-worlds-interpretation-of-quantum-mechanics-has-many-problems-20181018/

“For every tragedy, like Gwyneth Paltrow’s character being hit by a van in the many-worlds-inspired 1998 movie Sliding Doors, there is salvation and triumph. Who could resist that idea?”

 

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Simulation

Elon Musk says we may live in a simulation. Here’s how we might tell if he’s right

https://www.nbcnews.com/mach/science/what-simulation-hypothesis-why-some-think-life-simulated-reality-ncna913926

“If you assume any rate of improvement at all, games will eventually be indistinguishable from reality,” Musk said before concluding, “We’re most likely in a simulation.”

Astrophysicist Neil deGrasse Tyson agrees, giving “better than 50-50 odds” that the simulation hypothesis is correct. “I wish I could summon a strong argument against it, but I can find none,” he told NBC News MACH in an email.

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You thought quantum mechanics was weird: check out entangled time

https://aeon.co/ideas/you-thought-quantum-mechanics-was-weird-check-out-entangled-time

“What on Earth can this mean? Prima facie, it seems as troubling as saying that the polarity of starlight in the far-distant past – say, greater than twice Earth’s lifetime – nevertheless influenced the polarity of starlight falling through your amateur telescope this winter. Even more bizarrely: maybe it implies that the measurements carried out by your eye upon starlight falling through your telescope this winter somehow dictated the polarity of photons more than 9 billion years old.”