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1 vote
6 answers
4k views

Does physical reality exist without an observer?

This question also considers principles of quantum physics. When electrons or any other subatomic particles are "observed" or "measured", their wavefunction collapses to a certain ...
Kimaya Deshpande's user avatar
2 votes
3 answers
280 views

Metaphysical theories for why physics has the structure it has

The laws of physics have an extremely rich structure. The more fundamental you go, the more complex it becomes (e.g. Quantum Mechanics is more complex (no pun) than Newtonian mechanics). This ...
Ryder Rude's user avatar
1 vote
1 answer
344 views

Examples of theories that assume the existence of an “External Reality”?

In this paper written by physicist Max Tegmark (https://arxiv.org/pdf/0704.0646.pdf) it talks about "External Reality Hypothesis". Specifically, he says: Although many physicists subscribe to the ...
minnafotter's user avatar
34 votes
12 answers
11k views

Why is the complex number an integral part of physical reality?

In modern physics, the quantum wave distribution function necessarily uses complex numbers to represent itself. If physics defines the physical reality, then what we are saying by the statement above ...
Dheeraj Verma's user avatar
2 votes
1 answer
491 views

Is our civilization based on a illusion?

I have not studied philosophy although find interesting reading about. According to new theories in modern physics the concept of matter is an illusion. Matter is just a wave. We understand materials ...
Anastasios Vlasopoulos's user avatar
19 votes
12 answers
16k views

What are some arguments against the brain-in-a-vat thought experiment?

I read this article about how this guy in Switzerland did an experiment that he thought proved the Simulation Hypothesis of reality (link: http://arxiv.org/abs/1210.1847). I have also been reading ...
Josh Zmijewski's user avatar
0 votes
1 answer
107 views

Deny the existence of infinities by philosophical means only [closed]

Is it possible to deny the existence of infinities in the real world, by philosophical means only? If it makes it easier, I'm mainly interested to deny that we can know an infinite amount of things (...
draks ...'s user avatar
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