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Just a fringe speculation without any physical basis: maybe the Big Bang emits a 4-dimensional spherical shell of matter at c? With the direction in which we a
by xeonmc 3y ago
Just a fringe speculation without any physical basis: maybe the Big Bang emits a 4-dimensional spherical shell of matter at c?
With the direction in which we are traveling at c called “time”, and the other three which we're not moving through called “space”;
diverging rays having spatial velocity relative to each other equal to tan(alpha) i.e. flat projection;
and at any given point on the 4-sphere's 3D surface everything appear to be diverging in 3D because the emission is spherically symmetric;
and trajectories sufficiently paraxial to us fits the small angle approximation but those diverging widely has much more apparent perspective distortion,
with an error ratio of tan(alpha)/sin(alpha) = sec(alpha) = 1/Lorentz_Factor?
- dmd 3y ago[flagged]
- deleted 3y ago[deleted]
- dvsfish 3y agoWhile its probably totally wrong, I think your tone and general attitude to people throwing around imaginative and creative ideas is extremely unproductive and frankly rude. If you want to stifle creative discussions, this is exactly how you'd do it. I found the post to be very stimulating regardless of its validity. And it's not like they're trying to spread it as gospel. There was a lot of disclaimer.
- mrguyorama 3y agoIf you want creativity, take an art class. This is cosmology, ostensibly a science. Pulling wild ideas out of thin air and basically ad-libbing a "theory" is not.
- dvsfish 3y agoSo we have to put everyone who dares to imagine down about it? I see value in sharing a wild idea purely for the inspiration it may give others to think about things from a unique perspective. A lot of great science started as a strange idea.
- mrguyorama 3y agoWhat's the value in """daring to imagine""" about cosmology? This is nothing more than reality based fan fiction. >A lot of great science started as a strange idea. Disagree. A lot of great science started with "This weird math I'm doing is the only way to fit this data", which is an extremely different thing. Do you not think physicists and cosmologists and their nerdy friends have thought of wild ideas? Do you not think undergrad students spend drunken friday nights theorycrafting universes? It's pretty disrespectful to "why don't you just" a profession without showing that you at least did your homework first, or that you have looked at whoever definitely asked that question before you. There are people in this post reinventing Tired light and Aether based theories for crying out loud, theories with fairly conclusive reasons we abandoned them. When you just ass-pull theorycrafting without any of the fundamentals, all you do is talk in circles. It's no better than all the dumb "the brain is like a computer" arguments by analogy in neuroscience posts. It's not even wrong. We live in a world where the people who had to cheat off me in high school biology angrily insist that the vaccine doesn't work. Do we really benefit from playing such anti-scientific games?
- mr_mitm 3y agoThank you. It's good to know I'm not the only one who feels disrespected from people on the sidelines who clearly never opened a cosmology textbook. It's one thing to ask curious questions, but "why don't you just do the thing that was ruled out 100 years ago" and expecting a detailed rebuttal is a bit rich. It's like asking "why don't they cure cancer by cutting it out of the body". Or "why don't you just apply basic set theory to P=NP". It's always the same on these HN threads about cosmology. Even worse with dark matter, probably because you can understand rotating curves with high school physics. No one ever invents or roots for fringe theories on baryonic acoustic oscillations in the angular power spectrum of the cosmic microwave background.
- root_axis 3y agoI think if you're going to dismiss the comment in such a flippant and condescending manner you should at least explain what's wrong with it.
- dmd 3y agoHow does what they said differ from simply saying the universe is expanding - but in a word-salady way that obfuscates it?
- jabits 3y agoThis is a really interesting thought. I will be noodling on this tonight. Thanks
- deleted 3y ago[deleted]