5119
5120

What gets weirder and weirder the more you think about it? (self.AskReddit)

Sippingin が 投稿

並べ替え:
ベスト
トップ新着論争中古い順Q&A
あなたは単独のコメントのスレッドを見ています。

残りのコメントをみる →

[–]fareven 398ポイント399ポイント  (17子コメント)

It has to do with fundamentally different mathematics underpinning both.

A good way to remind people that mathematics is used to model our understanding of reality, it does not define reality.

[–]Andromeda321 99ポイント100ポイント  (16子コメント)

No, it doesn't. But science is based on creating a model and holding up that model to tests to see if they pass or fail your model, and in physics these models are mathematical because the models need to include quantitative descriptions. So in this case people started with a mathematical model for gravitational theory that holds up against everything we throw at it, as does the model for quantum mechanics, but the bridge fails when you try to put the two together.

So basically something is wrong in the steps which are currently our best try at figuring out what's going on, but no one can quite see where the mistake in the model is. If we knew a better way to be doing this stuff, we'd be doing it!

[–]holythunderz 44ポイント45ポイント  (15子コメント)

I think his point is that quantum mechanics and gravity aren't not reconcilable, just our mathematical models for them are.

[–]lidsville76 2ポイント3ポイント  (14子コメント)

The math for that exists. It has to in order for both things to be around, we just haven't the computational power to figure it out.

[–]JurassicArc 8ポイント9ポイント  (13子コメント)

Math doesn't underpin reality in that way, though. Reality comes first, then math maps onto it.

[–]Herbert_Von_Karajan 2ポイント3ポイント  (12子コメント)

The problem is the math we use has an axiom of infinity, which is not empirically part of the universe.

[–]thipp 2ポイント3ポイント  (8子コメント)

What's the evidence against there not being infinity? There's no way of possibly knowing if there's an infinite universe or not.

[–]indie_mcemopants 2ポイント3ポイント  (3子コメント)

Nothing can be infinite. That is, only NOTHING can be infinite. If SOMEthing were infinite, then it would also be omnipresent, by definition. So while empty space or concepts like math (nothing) can be said to be “infinite”, matter (something) can not.

Uh…right?

[–]thipp 0ポイント1ポイント  (2子コメント)

Well that's the thing, there could potentially be an endless amount of matter in the universe, and while you can only observe a finite amount there could still be more that you have yet to observe.

[–]indie_mcemopants 1ポイント2ポイント  (1子コメント)

I think you're misunderstanding me. By definition there CAN'T be an infinite amount of matter or it would be everywhere. There would be no empty space. That's what it means to be infinite.

[–]Herbert_Von_Karajan 0ポイント1ポイント  (3子コメント)

There is no way of possibly knowing if there are unicorns or not

[–]thipp 1ポイント2ポイント  (2子コメント)

There's reasonable arguments for infinity, and evidence that hints at it. You really can't pull that analogy out of your ass to prove a point.

[–]Herbert_Von_Karajan 1ポイント2ポイント  (1子コメント)

Infinity itself is an argument against infinity, and there is no evidence for it. Do you know what a non-Lebesgue measurable set is?

[–]fuckotheclown3 1ポイント2ポイント  (2子コメント)

Don't forget about zero. You'd think something as simple as saying "there are zero jelly beans in my hand" would pan out, but once you define a jelly bean and factor in quantum uncertainty, you end up with a nonzero probability of a jelly bean in your hand. Also, literally any other number can be a divisor. Zero can't because it's not real.

[–]Herbert_Von_Karajan 1ポイント2ポイント  (0子コメント)

zero is as real as every other number, and they are as real as unicorns

[–]Forever_Awkward [スコア非表示]  (0子コメント)

I can divide by zero.

Five divided by zero is five.