this post was submitted on 27 Feb 2024
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Science Memes

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[–] [email protected] 164 points 8 months ago (1 children)

I take the square root of the negative trolley, then use my imaginary streetcar to establish a complex track so I can start killing in an additional dimension.

[–] [email protected] 141 points 8 months ago (3 children)
[–] [email protected] 24 points 8 months ago
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[–] [email protected] 88 points 8 months ago (8 children)

It's always better to gain a full understanding of the system when trying to make important decisions.

The trolley has two sets of wheels, leading and trailing, both of which must remain on the same set of tracks.

The switch is designed to enable the trolley to change course, moving from one set of tracks to the other.

Throwing the switch after the leading set has passed, but before the trailing set has reached the switch points will cause the two sets to attempt travel on separate tracks. The trolley will derail, rapidly coming to a halt. If the trolley is moving slowly enough to permit this action, nobody dies.

Source: former brakeman (one of the people responsible for throwing switches), section hand (one of the people responsible for installing switches), and railroad welder (one of the people responsible for field repairs of switches).

[–] [email protected] 43 points 8 months ago (2 children)

I'm pretty sure that leads to multi-track drifting, and so all the people die.

Source: https://i.kym-cdn.com/entries/icons/facebook/000/000/727/DenshaDeD_ch01p16-17.jpg

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[–] [email protected] 16 points 8 months ago (1 children)

I'm no expert, but I'd expect such a slow moving trolley to eventually derail itself anyway on account of all the corpses

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[–] [email protected] 15 points 8 months ago (1 children)

I think you just passed the Trolley version of the Kobayashi Maru. Well done.

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[–] [email protected] 8 points 8 months ago

Way to stop the trolly problem dead in its tracks.

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[–] [email protected] 63 points 8 months ago (4 children)

I would question the ability to line people up on a railroad track such that they have a 1:1 correspondence with the real numbers.

[–] [email protected] 32 points 8 months ago

It's totally doable because they are real people.

[–] [email protected] 14 points 8 months ago (1 children)

Yeah, for any length of track, you would need to stack infinite people...

[–] [email protected] 12 points 8 months ago (4 children)

If we are already dealing with infinities of peoples then we can deal just as easily with infinities of tracks. I just struggle to see what kind of power source the trolly uses to plow through that many people.

[–] [email protected] 13 points 8 months ago (1 children)

It’s powered by screams.

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[–] nul 50 points 8 months ago (7 children)

Has anyone tried just asking the trolley to stop?

[–] [email protected] 27 points 8 months ago

Or stopped the person who keeps tying all these people to the trolley tracks?

[–] [email protected] 9 points 8 months ago* (last edited 8 months ago) (1 children)

Or trying to understand its innate desire to kill?

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[–] [email protected] 45 points 8 months ago (5 children)

At any point in time, a finite amount of time has passed, and the trolley has killed a finite amount of people. The correct track is the one that, at any given time, will have killed fewer people. Unless the trolley speeds up to account for that and always kills n people per second, the top track will result in less deaths over any period of time.

[–] [email protected] 18 points 8 months ago

The straight ahead track actually kills an infinite number of people every interval of time.

[–] [email protected] 13 points 8 months ago (1 children)

The tram travels at light speed and so time no longer flows for you. You exist in a singular moment of splattergore.

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[–] [email protected] 37 points 8 months ago (3 children)

Assuming that it takes some amount of energy to kill one person, and that the trolley doesn't have an engine with infinite power, choosing the bottom track would save lives. The trolley would have to expend an infinite amount of energy to move any distance from the starting point, so it would just get stuck there while trying to crush the unimaginable amount of people bunched up in front of it.

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[–] [email protected] 34 points 8 months ago (3 children)

Pulling the lever will kill people slower, therefore less deaths in the lifetime of the universe.

[–] [email protected] 11 points 8 months ago (1 children)
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[–] [email protected] 10 points 8 months ago

So I won't do it

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[–] [email protected] 30 points 8 months ago (3 children)

Move to the end of the track and undo the constraints of people on the track. You will have infinite time until the trolly reaches the end, and can thusly save infinite lives by doing so.

[–] [email protected] 30 points 8 months ago (3 children)

Sadly, it takes an infinite amount of time to reach the end of the track. Thankfully, you have infinity time, though it's still inconvenient. An infinite number of people people will die (instead of an infinite number of people), but you'll save an infinite number of people in the end. After an infinite amount of time that will be infinitely better!

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[–] [email protected] 29 points 8 months ago (1 children)

Pull the lever, thus killing -1/12th people.

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[–] [email protected] 28 points 8 months ago* (last edited 8 months ago) (8 children)

That trolleys going to derail eventually. So the one with more people since they are tightly packed and it can't build momentum.

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[–] [email protected] 21 points 8 months ago (1 children)

Shit man if there's an infinite amount of people there must also be an infinite amount of track. So forget philosophy, I'm getting rich!

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[–] [email protected] 21 points 8 months ago (2 children)

I come to an agreement with the person who has tied these people to the tracks to untie every 2nd person. I save an infinite number of people!

[–] [email protected] 12 points 8 months ago* (last edited 8 months ago) (1 children)

I tried to do a similar deal and ended up with negative one twelfth of a person dead.

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[–] [email protected] 19 points 8 months ago* (last edited 8 months ago) (3 children)

Do nothing, since an infinite number of people implies an inconceivable population overgrowth, so the best possible good for humanity is to cull the population.

Heck, you could probably go out and genocide the rest of the population that isn't tied to the track and still not suffer any real loss. Then, you face the last true enemy: the bloodsoaked beast responsible for the deaths of untold billions- yourself.

Once you've slain that last creature, all of humanity that still remains will be those tied to the railroad track. The only living people will spend their entire lives knowing nothing but the track and the trolley, and the imposing fear that one day, they, too, shall be crushed under its wheels like those before them.

The only life remaining for the human race is now one of terror and eventual slaughter. There are no good outcomes to this conundrum. There are only the uncaring wheels of the trolley.

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[–] [email protected] 18 points 8 months ago

I kill the trolley driver. The Dead Man button makes that the trolley stops.

[–] [email protected] 16 points 8 months ago

If you let the train go, it would appear to stop immediately at the first person (assuming it has any reaction whatsoever to hitting a person) as there are infinitely real numbers between any two real numbers you could come up with.

[–] [email protected] 16 points 8 months ago (1 children)

The top track can be assumed to be of infinite length, but for the bottom track this is not enough - to fit ℵ people on it, they'll have to be infinitely compressed. And since they are compressed - they are already dead. I'm not pulling the lever - preventing the (farther) desecration of corpses does not merit killing people who are still alive.

[–] [email protected] 10 points 8 months ago (1 children)

As a mathematician, this strikes me as an entirely reasonable interpretation, except for the fact that the compressed bodies would form a black hole, killing everyone regardless.

So you're correct to say that you wouldn't pull the lever, but your reasoning still missed an important detail.

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[–] [email protected] 15 points 8 months ago

Seeing an infinite number of people lying there I deduce that I must be in some kind of thought experiment and let the trolley roll on while I look for a way to escape back to reality.

[–] [email protected] 15 points 8 months ago (6 children)

Everybody dies, no matter what choice you make. It's just a matter of time.

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[–] [email protected] 14 points 8 months ago (1 children)

People die faster if you do nothing, so doing nothing seems like the obvious choice

[–] [email protected] 11 points 8 months ago (4 children)

The trolley goes at infinite speed after the branch point. What's your outside the box answer now?

[–] [email protected] 8 points 8 months ago

which size infinite speed we talkin’? if its faster than light then maybe we got ourselves a time travel trolley 😎

[–] [email protected] 8 points 8 months ago (1 children)

Halfway through the branch point pull the lever to derail the trolley?

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[–] [email protected] 14 points 8 months ago* (last edited 8 months ago)

As an Engineer with a Physics background I say the most ethical choice is the real numbers side as the tram, having no room to accelerate between victims, will quickly stop, whilst it's more likely it can keep going for ever on the integer branch of the line.

A more effective vehicle for this would be a tank or maybe a steamroller.

(Note to self: keep this in mind if I ever become an Evil Overlord and need to execute large numbers of people in a gruesome manner)

[–] [email protected] 14 points 8 months ago (3 children)
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[–] [email protected] 13 points 8 months ago* (last edited 8 months ago) (1 children)

what do you do?

I replace the lever with a quantum switch so it can be a superppsition and kill everyone twice be ause they deserve it I mean look at that massive line of people there is no way they didn't know what was going on before egtting added to the tracks no species thos dumb deserves to escape the trolly my god how did they all get there -continues ranting as trolly aproaches-

PAUSE

And this makes about as much sense as the original question so no educating me!

resumes ranting

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[–] [email protected] 11 points 8 months ago

That trolley is definitely stopping before it makes it through all those people on the bottom track.

[–] [email protected] 11 points 8 months ago

Multi-track drifting, baby. Double infinite.

[–] [email protected] 10 points 8 months ago

I'm just waiting for the black hole to form just from the mass of the infinite people between 0-1 on the Reals track.

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