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Pierre-Normand

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Yes, that's a valid point. This is precisely why I introduced the concept of a small, constant probability ?, representing the chance for the hostage ...
May 30, 2023 at 08:26
The analysis you provide would hold true if the hostage was guaranteed in advance to have exactly one opportunity to escape during the entirety of the...
May 30, 2023 at 08:17
The original Sleeping Beauty problem does indeed hinge on a single coin toss, but it's crucial to understand the unique nature of this coin toss withi...
May 30, 2023 at 00:46
It's worth noting that your provided sequence converges on 1/3. If the captive is not keeping track of the date, their credence should indeed be exact...
May 29, 2023 at 13:10
Take you time. I'm being moved to a new safehouse until tomorrow.
May 29, 2023 at 12:22
Yes, my first sentence was wrong. There is a new coin flip every day when the captor must decided on a new (or the same) safehouse. In the case where ...
May 29, 2023 at 12:16
Suppose you've been kidnapped. Each morning, your captor flips a coin. If it lands on heads, you're blindfolded and taken to safehouse #1 (or simply w...
May 29, 2023 at 12:05
Let us stick with the normal Sleeping Beauty scenario for now, if you don't mind, as I think the lessons drawn will generalize even to your extreme va...
May 29, 2023 at 11:32
Before the experiment begins, neither John Doe nor the sitter can rule out a possible future in which we are on Day2 of the experiment and John Doe re...
May 29, 2023 at 10:52
So, as they await the interviewer, John Doe and the sitter contemplate the probability that the coin landed tails. The coin might be right there on a ...
May 29, 2023 at 10:42
Do you agree that from the sitter point of view, the probability that the coin landed tails is 2/3?
May 29, 2023 at 10:32
Sorry, I meant to say that he can rule out it being the case the the coin landed heads and that this is Day2.
May 29, 2023 at 10:30
In that case, the probability that my chosen door contains a car remains 1/2. The probabilities that a car is behind door 3 or behind door 4 get updat...
May 29, 2023 at 10:26
The halfer and thirder responses, as you frame them here, correspond to different questions answered from different epistemic perspectives. Consider t...
May 29, 2023 at 10:18
Your variation of the problem indeed appears to me to contain elements reminiscent of the Monty Hall problem, but with a key difference in the selecti...
May 29, 2023 at 09:36
From the external point of view of the experimenter, it makes sense that the tree probabilities add up to more than one since the three outcomes are n...
May 28, 2023 at 10:31
I agree with the idea that Sleeping Beauty's credence in H is updated to 1/2 after she learns that her current awakening is occurring on a Monday. The...
May 28, 2023 at 09:59
I now realize that in the OP's stipulation of the problem, and in line with most discussions of it, it is when the fair coin lands tails that Sleeping...
May 28, 2023 at 05:28
I appreciate your viewpoint, but I can modify my analogies to meet the condition in your first scenario. Scenario 3 (Lottery study) Imagine that ticke...
May 27, 2023 at 22:19
For sure, but your new variation doesn't mirror the Sleeping Beauty problem anymore. You earlier version was better. We must rather imagine that in th...
May 27, 2023 at 10:24
She does recognize that for the coin to land 100 times in a row is unconditionally unlikely. But why would it not be rational for her to condition her...
May 27, 2023 at 10:12
I can easily adjust my lottery study example such that I am guaranteed to be selected but, once selected, the very (unconditionally) low event that le...
May 27, 2023 at 10:04
Yes, I agree with your representation.
May 27, 2023 at 09:57
I'm not sure why you think this is absurd. Compare again my lottery study example. Suppose there are one billion people on the waiting list. If a coin...
May 27, 2023 at 09:51
There is a space of possible awakening/interview events A that are being characterised by the day in which they occur ((M)onday or (T)uesday) and by t...
May 27, 2023 at 09:22
They are!
May 27, 2023 at 09:07
One clue to this is to let SB bet on the outcome that her credence is about and see if her betting behavior leads her to realize the EV she is anticip...
May 27, 2023 at 09:05
I would rather say that the experience works by ensuring that Sleeping Beauty finds herself being awoken in circumstances that she knows to be twice a...
May 27, 2023 at 09:02
If you mean P(Awake) to refer to the probability of your being awakened at all (on at least one day) then P(Awake) is indeed 0.5. But in that case P(A...
May 27, 2023 at 08:54
But I'm not saying that. What I'm saying is that she is being awoken every Mondays and she is awoken half the time on Tuesdays. So, on average, on a r...
May 27, 2023 at 08:37
(I woke up early) P(Tuesday|Awoken) = (P(Awoken|Tuesday) / P(Awoken)) * P(Tuesday) Sleeping Beauty is awoken with probability 3/4 on an average day (M...
May 27, 2023 at 08:26
In the quoted post you say: "P(Awake|Heads) is just the prior probability that she will be woken up if the coin lands heads" I think my lottery study ...
May 27, 2023 at 07:51
This is not a probability. It's a ratio of probabilities that I have expressed as a ratio of corresponding frequencies. The updated probability P(Head...
May 27, 2023 at 07:30
It makes it twice as likely that individual bets are winning bets. Right? Likewise in Sleeping Beauty's problem, the fact that she is being awoken twi...
May 27, 2023 at 07:26
This is a follow-up to my previous post. In the case of Sue's selection to participate in the lottery study, we have P(Heads|Selected)=P(Selected|Head...
May 27, 2023 at 07:15
Wasn't that rather the Cinderella problem? You're inviting us to imagine ourselves in Sleeping Beauty's shoes to support the halfer position. However,...
May 27, 2023 at 06:23
In the Wikipedia article, the problem is set up thus: "Imagine you are given two identical envelopes, each containing money. One contains twice as muc...
May 22, 2023 at 18:11
If we assume that all results are equally likely, the EV of switching given that the chosen envelope was seen to contain n is (2n + n/2)/2 - n = 1.5n....
May 22, 2023 at 03:17
This is an very enlightening analogy.
May 21, 2023 at 19:03
They are in hot pursuit: Amazon plans to rework Alexa in the age of ChatGPT
May 21, 2023 at 18:59
Your assertion that 'only two values are possible' for the contents of the envelopes in the two-envelope paradox deserves further exploration. If we c...
May 21, 2023 at 18:46
There is nothing there that I disagree with. But I don't think the paradox arises if the values of the two envelopes are stipulated in advance ($10 an...
May 21, 2023 at 07:41
Indeed, I concur that the paradox can also manifest when the option to switch envelopes is offered prior to opening the initially chosen one. The reso...
May 21, 2023 at 02:26
Unless you are subscribing to ChatGPT Plus (for $20 per month), it's GPT-3.5 you have access to. When you subscribe to ChatGPT Plus, you can then sele...
May 21, 2023 at 02:06
In my experience, GPT-3.5 is much more liable to make up references whenever there is any sort of gap in its knowledge. GPT-4 very seldom does so when...
May 21, 2023 at 01:56
My understanding and resolution of the paradox is somewhat aligned with this perspective. The paradox was first introduced to me about 30 years ago by...
May 20, 2023 at 18:10
In his paper, 'Truth and Rule Following', John Haugeland artfully fuses Kant's concept of 'synthetic a priori' and the phenomenological/existential id...
May 20, 2023 at 17:20
Some people find his performances merely laughable, others find them merely repugnant. Another false dichotomy.
May 10, 2023 at 06:36
The nativist view posits that individuals are born either biological women or men, with the expectation that their gender expressions naturally align ...
May 10, 2023 at 05:44
Well put!
May 09, 2023 at 21:38