gjm comments on How did my baby die and what is the probability that my next one will? - Less Wrong

22 Post author: deprimita_patro 19 January 2016 06:24AM

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Comment author: gjm 19 January 2016 03:37:32PM 4 points [-]

Yup, that sounds very plausible. Would your unwillingness to give a number be changed if your client said -- as I think the OP here would -- something like this? "I understand that any probability you give me may be wrong in ways it's prohibitively hard to prevent, and I promise that I am not looking for perfection or anything like it. I understand that providing a probability may mean extra work, and I am happy to pay for that extra work. And I assure you that my own understanding of probability is extremely good and I will not do silly things like assuming that if you say something's unlikely and it happens then you're incompetent."

Comment author: TimS 19 January 2016 03:43:14PM 6 points [-]

No, my answer would not change.

First, I don't believe the assertion. Second, the kind of work to generate this kind of answer is different from providing service for the client. I enjoy advocating for clients, not meta-level analysis of advocacy. Think medical care vs. MetaMed.

Comment author: gjm 19 January 2016 03:52:36PM 5 points [-]

Fair enough. (In so far as you're typical, it sounds like the OP is unlikely to get any further benefit from talking to more medical professionals.)

Comment author: The_Jaded_One 19 January 2016 10:51:24PM *  3 points [-]

Third, my clients are human, and like all humans, are bad at probability. If I tell a client they have a 60% chance of winning and we lose, the client will be mad at me. That by itself is reason to give qualitative estimates, not quantitative ones.

This is a huge meta-level problem with trying to be rational as a human being, surrounded by other human beings who are not rational.

Organisations with access to quantitative information have every incentive to hide it from you because the average human is a f**king idiot who will make a total pig's breakfast of the decision theory and probability theory, and then try to use the legal system to punish the giver-of-information.