
eclipse
Member
- Apr 14, 2021
- 38
Personally, I think we should be careful with the very concept of "nothing", just as with other concepts like "before" and "after". What do they actually mean, and more importantly, does the reality of the universe really reflect these notions in our minds? We throw terms like those around as if they were universal truths but as always, I think they are crude concepts to find our way around in our natural environment.
The way our brain works is that it picks up stimuli, filters and interprets them and then it creates an internal image simplified as much as possible so that we can make decisions and survive using as little energy as possible - brainpower consumes a lot of energy, it needs to work in an efficient way. We see a tasty piece of cheese cake when the actual information coming to our eyes is a flurry of millions (or however many) of electromagnetic waves, and then it is compared to past experiences. It would be impossible to process that information consciously, so instead the decision-making part in our brain just gets the information "tasty cheese cake", so it can easily act on that.
It feels like I'm rambling, but I think concepts like "nothing", "before", "after" etc. are oversimplified concepts just like "cheese cake" created to find our way around. Special relativity already makes a mess of our understanding of time and it's really hard to wrap our head around that. With general relativity, particle physics, quantum mechanics, string theory etc. it only gets worse. An understanding of that has been irrelevant throughout evolution, so our conscious mind has a really hard time coming to grips with it.
Or take "acceleration", everyone has an intuitive understanding of what that means. In Newtonian physics, gravity accelerates us towards the ground and that is why we feel weight. Easy enough. But from what I read, in general relativity it would be more accurate to say that we aren't accelerated downwards, but the ground is accelerating upwards in relation to spacetime, pushed outward by the massive pressure inside the planet. That is extremely counter-intuitive and I think it's a fine example of the disparity between the concepts that exist in our head and how the universe seems to actually behave.
Another example: "water finds its level". That is an outrageous oversimplification of the physics involved, and it even suggests some sort of agency in the sense that "water" "seeks" and "finds" its "level". It's just one that we can easily understand to predict what happens in a way our brain can process.
Speaking of water and coming back to "how can something come from nothing": imagine our plane of existence being the surface of a lake and let's just say there was no wind or anything, not the slightest movement on this surface. It would probably look like "nothing" to us. Now there's some movement below the surface - completely invisible to us - and little waves appear and we'd wonder how the hell that happened, how something could come from nothing.
Am I implying that there is actually "something" below the "nothing"? I'm not sure actually. I think the main point I'm trying to make is: what is "nothing"? What is this "before" when talking about the big bang? Are we asking anthropocentric questions that don't make sense in the universe?
And of course that's before asking if we can find out what was before the big bang if we're still struggling to find out what's going on right now.
The way our brain works is that it picks up stimuli, filters and interprets them and then it creates an internal image simplified as much as possible so that we can make decisions and survive using as little energy as possible - brainpower consumes a lot of energy, it needs to work in an efficient way. We see a tasty piece of cheese cake when the actual information coming to our eyes is a flurry of millions (or however many) of electromagnetic waves, and then it is compared to past experiences. It would be impossible to process that information consciously, so instead the decision-making part in our brain just gets the information "tasty cheese cake", so it can easily act on that.
It feels like I'm rambling, but I think concepts like "nothing", "before", "after" etc. are oversimplified concepts just like "cheese cake" created to find our way around. Special relativity already makes a mess of our understanding of time and it's really hard to wrap our head around that. With general relativity, particle physics, quantum mechanics, string theory etc. it only gets worse. An understanding of that has been irrelevant throughout evolution, so our conscious mind has a really hard time coming to grips with it.
Or take "acceleration", everyone has an intuitive understanding of what that means. In Newtonian physics, gravity accelerates us towards the ground and that is why we feel weight. Easy enough. But from what I read, in general relativity it would be more accurate to say that we aren't accelerated downwards, but the ground is accelerating upwards in relation to spacetime, pushed outward by the massive pressure inside the planet. That is extremely counter-intuitive and I think it's a fine example of the disparity between the concepts that exist in our head and how the universe seems to actually behave.
Another example: "water finds its level". That is an outrageous oversimplification of the physics involved, and it even suggests some sort of agency in the sense that "water" "seeks" and "finds" its "level". It's just one that we can easily understand to predict what happens in a way our brain can process.
Speaking of water and coming back to "how can something come from nothing": imagine our plane of existence being the surface of a lake and let's just say there was no wind or anything, not the slightest movement on this surface. It would probably look like "nothing" to us. Now there's some movement below the surface - completely invisible to us - and little waves appear and we'd wonder how the hell that happened, how something could come from nothing.
Am I implying that there is actually "something" below the "nothing"? I'm not sure actually. I think the main point I'm trying to make is: what is "nothing"? What is this "before" when talking about the big bang? Are we asking anthropocentric questions that don't make sense in the universe?
And of course that's before asking if we can find out what was before the big bang if we're still struggling to find out what's going on right now.
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