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/sci/ - Science & Math

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4018387 No.4018387 [Reply] [Original]

Can two unique systems evolve to share the an indistinguishably similar state? i.e. Are our physical models surjective?

>> No.4018400

>>4018387
We share language, don't we?

>> No.4018409

got your terms mixed up bro -- surjective means every element of the target space is hit by something. If your domain is "unique systems" and the codomain is "things they evolve into," two evolving into the same state doesn't violate surjectivity.

>> No.4018410

>>4018400
Yeah, but I'm not sure I understand what you are implying...

>> No.4018415

>>4018409
If non-injective is a better term, then that's what I mean.

>> No.4018416

>>4018410
Well, we're two unique systems, yet we share a language state.

Case closed.

>> No.4018426

>>4018416
I'm speaking in terms of physics though, we may share a language, but I'm pretty sure we don't look the same.

>> No.4018445
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4018445

>>4018426
You're obviously confused.

Here, have a picture.

>> No.4018454

>>4018387

>mfw i thought you spelled "subjective" wrong because i have no idea what your talking about
>mfw i was going to correct you until i googled "surjective"
>mfw i have no face cause im an idiot

>> No.4018480

>>4018454
>mfw language is surjective

>> No.4018498

>>4018454
As a simple analogy I mean, can we have a physical system which can be described as 2+3 -> 5 and another which can be described as 1+4 -> 5, such that if we only knew about 5 we couldn't know if it's previous state was 2+3 or 1+4?
I may just be stupid, but this doesn't seem obvious to me.