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1106 points sama | 91 comments | | HN request time: 2.013s | source | bottom
1. iMuzz ◴[] No.12508474[source]
Question/Answer I found interesting:

Sama> How should someone figure out how they should be useful?

Elon> Whatever this thing is you are trying to create.. What would be the utility delta compared to the current state of the art times how many people it would affect?

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2. milkytron ◴[] No.12508769[source]
Certainly very interesting, in fact I wrote this down when I heard it. And if you look at the projects he's working on (Renewable energy, cars able to powered by renewable energy, and preserving life outside of Earth), they all affect a great portion of humanity, and have a very large affect.
replies(1): >>12508992 #
3. soufron ◴[] No.12508992[source]
Affect like how? As of today they're useless, except for Tesla who's motivating car automakers to go towards autonomous cars - but they had the tech before.
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4. marvin ◴[] No.12509111{3}[source]
Tesla's energy storage enables people to use solar energy at night, without the process being a big hassle. If it gets cheap enough, it will make solar power competitive with fossil power in most scenarios. Currently, the battery installations are a cost-competitive alternative to fossil ways of covering peak load. Calling it useless is probably a stretch.

Ditto with Tesla's cars; they aren't a drop-in replacement for gasoline cars in all scenarios but I've heard more than one Tesla owner say that they will never buy a gas-powered car again. So obviously that implies greater utility for the person in question than any current gas-powered car.

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5. milkytron ◴[] No.12509127{3}[source]
I suppose I should have wrote "will affect". If we end up colonizing Mars, or even getting one person to land on Mars, I think Space X will have been involved in creating competition in the aerospace industry at the least.

My point was that his ideas are ones that have potential for huge amounts of change. Whether or not we will see that change is another matter.

replies(1): >>12509638 #
6. jklinger410 ◴[] No.12509255{3}[source]
>except for Tesla who's motivating car automakers to go towards autonomous cars - but they had the tech before.

This is enough, no?

The same with Space-X...

7. the8472 ◴[] No.12509450[source]
that's just utilitarianism in action
8. tempestn ◴[] No.12509638{4}[source]
SpaceX could also end up having a huge effect on the availability and affordability of high speed internet access.
9. soufron ◴[] No.12509646{4}[source]
You're kind of right. Let's say they find the right uses for existing tech that's not being used as it should.
10. jsprogrammer ◴[] No.12509676{4}[source]
Are Tesla's energy storage solutions available anywhere outside their vehicles?
replies(1): >>12509710 #
11. fchollet ◴[] No.12509709[source]
The equation should have per-subject weights to modulate the "how many people" part. For instance, if my app helps Mr. Musk be 10% more productive, that's more impactful than helping Mr. Smith be 10% more productive.
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12. dv_dt ◴[] No.12509710{5}[source]
Yes. Tesla Powerwall, a home battery.

https://www.tesla.com/powerwall

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13. piedradura ◴[] No.12509727[source]
I would add another multiplicative factor: the probability that you have success in what you are trying to achieve, if that probability is near zero you effort will be in vain.
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14. Applejinx ◴[] No.12509834{3}[source]
He is quite correct that societies can go backwards. There are many scenarios in which we would have 'the tech' and then end up abandoning and losing it. One simple example would be if one corporation profited more by wrecking 'the tech' of another and blocking its adoption, than the other could profit by furthering it. When it all comes down to money you get those suboptimal outcomes, and in the end somebody cashed in epically, but things were not made.

I'm pleased Elon gets this, but it's a chilling thought. We don't have to have MORE stuff, internets, communications etc. just because of Moore's Law, just because it's possible. We can also have progressively less because it's in someone's interest for it to be less.

replies(1): >>12524406 #
15. tscizzle ◴[] No.12509883[source]
I assume the equation he's talking about already propagates the value to the "leaves", where if the app is boosting a person's productivity, and that person's productivity increases value for a group of people, then it's that final group of people's increased value that is counted toward the original total. And there could be more than 2 layers before you quantify the value without recursing any deeper, of course.
16. RealityVoid ◴[] No.12510147{3}[source]
I find this false. Tesla is mainly a electric car company, not an autonomous car company. Other companies have the same class of capabilities in the market, it's just that Tesla has the good will of the people. I like Tesla, but calling it an autonomous car company is ridiculous.
17. mrdmnd ◴[] No.12510229[source]
Estimating this is probably futile, but in principle, I agree.
replies(1): >>12512841 #
18. metaphorm ◴[] No.12510272[source]
absurd hero worship. I like Elon Musk just fine, but you're fawning over him. How do you propose we nominate "great persons" for your "equation" anyway?
19. metaphorm ◴[] No.12510282[source]
you should read some Taleb on this subject. ignoring low probability outcomes is not a good risk/success model.
replies(1): >>12512001 #
20. Paul_S ◴[] No.12510398[source]
What about all the people working in marketing, software patent lawyers, drug dealers? You want them to quit their jobs?

---

Let me make my point in a less obtuse way. Most people make decisions about their careers based on opportunity and maximising profit. No one becomes a footballer to make the world a better place. This would all be fine as long as the capitalist market rewarded choices that make the world a better place. Obviously it does not and it's not the fault of a footballer that we as a civilisation choose to channel our available resources their way and not towards frivolous play like space exploration.

If anyone ever figures out a way to make the free market choose the greater good they will win all the Nobel prizes forever (we won't need Nobel prizes after that).

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21. leesalminen ◴[] No.12510486[source]
'Tis an interesting point.

> Drug dealers

Perhaps drug dealers (and their suppliers) can implement testing, QA and proper labeling.

I'm not totally sure about software patent lawyers. But, deep down, my gut says that if software patent law wasn't to crappy, perhaps the occupation would be perceived in a better light. Maybe they could push for reform from the inside?

On the whole, I think every industry can do some introspection on how they can affect more people for the betterment of society. It would do us all some good.

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22. Paul_S ◴[] No.12510559{3}[source]
Let me make my point in a less obtuse way. Most people make decisions about their careers based on opportunity and maximising profit. No one becomes a footballer to make the world a better place. This would all be fine as long as the capitalist market rewarded choices that make the world a better place. Obviously it does not and it's not the fault of a footballer that we as a civilisation choose to channel our available resources their way and not towards frivolous play like space exploration.

If anyone ever figures out a way to make the free market choose the greater good they will win all the Nobel prizes forever (we won't need Nobel prizes after that).

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23. i2shar ◴[] No.12510573[source]
The weights would be different based on who's assigning them.
24. karmelapple ◴[] No.12510601{4}[source]
Why isn't some entertainment - even if it's somewhat frivolous - for the greater good?

An hour spent watching a football game is an hour less committing crime or doing other unsavory acts.

But agreed - that person would win all the Nobel Peace prizes.

replies(1): >>12510899 #
25. marcosdumay ◴[] No.12510608{4}[source]
I'm wary of the specific claim about sports (or better, I do almost completely disagree with it).

But if you look at the worst offenders, you'll see that the professions that take the most profit normally also take the most power. And in yielding that power, they have a big share on the blame of making their negative utility profession lucrative.

26. TheOtherHobbes ◴[] No.12510619{4}[source]
Free markets are the problem, not the solution. You're not going to get much strategic planetary intelligence out of a system designed to maximise short-term profit. The absolute best you can hope for is the occasional individual like Musk who takes a longer view.

Politics - which includes economics - is a much bigger challenge than AI.

We've completely transformed our understanding of science and technology, but our political and economic thinking would be recognisable to a Roman senator and a medieval banker.

Politics and economics are still waiting for a Copernican revolution. Our survival prospects as a species are limited until that revolution happens.

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27. kamaal ◴[] No.12510638[source]
Not every one needs to subscribe to the world view that a person has to win spectacularly at big things to find meaning in life.
28. leesalminen ◴[] No.12510645{4}[source]
Thank you for clarifying. I do agree that it is expected to optimize ones career for maximum income.

Even so, an individual can often choose to push for the greater good within the confines of free market forces.

A footballer can use their image to promote organizations that do good. A SaaS owner can help their customers become more secure and efficient. Lawyers can push for better oversight and reform.

Maybe we can't all be Elon, but we can all try to improve our surroundings.

Maybe I'm too young and naive, but I think it can be done.

29. rlau26 ◴[] No.12510652[source]
It's a team effort, not necessarily an individual effort.

The people in marketing are the ones helping to bring the positive utility-delta stuff to light, so the utility delta actually happens.

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30. reubenmorais ◴[] No.12510680{3}[source]
> Maybe they could push for reform from the inside?

Here's an example, Mozilla's Open Software Patent License, trying to do some reform from the inside: https://www.mozilla.org/about/policy/patents/

31. muninn_ ◴[] No.12510745{5}[source]
Hmm that doesn't seem to make sense. Free markets (which include the vast majority of countries on the planet) enable people to create wealth. Maybe some sort of mix of a planet-wide initiative and the normal free markets we have would make sense. Calling free markets "the problem" doesn't really do anything for anybody.
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32. Paul_S ◴[] No.12510756{3}[source]
That strategy is similar to our current best strategy for bringing peace by killing more people than the enemy. It's proven to work but it is very wasteful on both sides.
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33. lutorm ◴[] No.12510825[source]
I actually don't think that most people make decisions about their careers based on maximizing profit at all. In fact, I think very few people would choose a soul-sucking job running against their values just because it pays more.
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34. jsprogrammer ◴[] No.12510864{6}[source]
I don't think those are planned to ship until 2018.
replies(1): >>12511990 #
35. jimbokun ◴[] No.12510866[source]
"No one becomes a footballer to make the world a better place."

Maybe not, but Messi increases the happiness delta a lot for many, many people. I think the world is a much better place with him as a footballer than an accountant or something.

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36. tloble ◴[] No.12510867[source]
Nah bro, as a billionaire, I make all of my money to help the world.
37. jimbokun ◴[] No.12510872[source]
Yes, and I believe Sam brought that up later in the conversation.
38. Whitestrake ◴[] No.12510890[source]
Hypothetically, this is unnecessary.

Assuming that a 10% increase in productivity causes a 10% increase in the impact on people (either in quality or quantity), 10% of Mr. Musk's impact may be greater in absolute terms than 10% of Mr. Smith's.

One may debate whether 10% productivity = 10% impact, but if that increase is attributed back to you, there's no need to artificially manipulate the equation.

39. Applejinx ◴[] No.12510895{6}[source]
Free markets are an optimal pachinko machine for distributing capital, that needs no oversight or central direction.

It doesn't generate its own pachinko balls, that's utterly orthogonal. Free market capitalism is what you DO with a population that has disposable income. You can't feed the bottom of it into the top, it doesn't even work that way.

It's not even optimal for reaching the highest developments of ideas and inventions, because local maximums will starve out the newer ideas that need to grow and become competitive. It does nothing about network effects and tends towards monopoly.

But it's a fantastic distribution mechanism for the wealth of existing populations: no overseer required! Within some known limitations it works very nicely.

NO wealth is ever created.

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40. dpark ◴[] No.12510899{5}[source]
> An hour spent watching a football game is an hour less committing crime or doing other unsavory acts.

Not for the vast, vast majority of people watching football. Most people aren't engaging in crime or "unsavory acts" whenever they have to entertain themselves.

I think mass entertainment is definitely for the greater good, but not because it reduces crime in any appreciable fashion.

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41. colin725 ◴[] No.12510900{3}[source]
Are you sure the net happiness from football was really raised by Messi or did he simply shift it to his county and teams he plays for? If you take away his great play doesn't it just make other players stick out more, and fans would derive happiness from other players?
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42. dclowd9901 ◴[] No.12510914{3}[source]
Some people way happiness at a job more importantly than quality of life outside of it.
43. Paul_S ◴[] No.12510921{3}[source]
The argument isn't about soul-sucking jobs, but about jobs that don't contribute to society. I'm sure there are people out there who enjoy cold-calling and scamming people.

But to address your argument: you missed the "opportunity" bit. If you're a well-off, well educated person you can choose to do whatever you feel like and I'm sure some people do without worrying about money (perhaps they have lots already). Most people will chose the best paying job that is available to them. Sorry, but reality is on my side on this one. Go visit a factory if you want to see if people want self-realisation or money to survive. Again: please remember the "opportunity" part. If you tell a factory worker he can earn 4$ an hour assembling landmines or 2$ an hour assembling asthma inhalers I will eat my hat if they don't go with the money (and I wouldn't blame them for this).

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44. NoodleIncident ◴[] No.12510949{4}[source]
Only one other player stands out as much. It seems silly to say that either should have been an accountant, because if he were, then the same arguments would apply to the other.

http://fivethirtyeight.com/features/lionel-messi-is-impossib...

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45. CodeMage ◴[] No.12510967[source]
Believe it or not, there are different motivations people have for choosing their careers. Some become footballers because they want to rake in as much money as Beckham, others because they enjoy football so much that they decide that's what they want to do all the time. I'm pretty sure most people don't have just one overriding motivation for what they do, but an amalgam of different factors. Your statement about maximizing profit as a primary motivator is less of a factual statement and more of a revelation about your own motivations.
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46. Paul_S ◴[] No.12511082{3}[source]
Most of the world population doesn't have the kind of opportunities you do. You are probably at the top 5% of the 7 billion population. Chances are you can choose between a 100k job and a 120k job that you find unsavory and maybe you choose the lower paid one. Most of the population has different choices to make. You are the one projecting your privelaged position onto the rest of the world.
47. sbuttgereit ◴[] No.12511148[source]
...make the world a better place.

Just what the hell does anyone even mean by "make the world a better place"?!

I am willing to bet that if we held a forum to settle what a "better world" means, we'd have to adjourn it with no resolution. The questions of better world for whom, and on what terms, by what definition, what expense and, oh yeah, who pays the bill and why would never find one conclusion.

What you really mean to say is that Capitalist market rewarded choices does make the world a better place according to your definition of it. But don't lay claim to speak for the world when for many Capitalism market rewards are making the world a better place.

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48. eli_gottlieb ◴[] No.12511243[source]
> What about all the people working in marketing, software patent lawyers, drug dealers? You want them to quit their jobs?

Yes, that would help a whole lot.

49. Kenji ◴[] No.12511261[source]
I think you're wrong about one thing. You see, you always think of the greater good as you define it. However, watching a football star is the desire of many, and they pay money for it, so the football star is in fact doing it for the greater good by entertaining many. Capitalism moves in the direction of where the money is - and the money is in things people want. So capitalism is a most efficient machine to produce things for the greater good. Any other definition of 'greater good', i.e. yours, would have to be forced on them by the force of law and ultimately, threats and violence.
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50. odbol_ ◴[] No.12511262{4}[source]
HN's privilege is showing pretty badly here in these comments. Seem to be completely oblivious to the oppressive squalor that most the world lives in, only thinking about which high-paying cushy job they should take to "change the world."
replies(1): >>12513000 #
51. sabertoothed ◴[] No.12511360{3}[source]
That's not necessarily true. Especially not if you also consider externalities.
52. gd1 ◴[] No.12511364{5}[source]
Given the way he has handled his taxes, it is safe to say that he would make a poor accountant anyway.
replies(1): >>12511470 #
53. icc97 ◴[] No.12511410[source]
Quite the opposite, they should be given unions and then we can finally admit to all living in Ankh-Morpork [1].

  [1]: https://en.wikipedia.org/wiki/Ankh-Morpork
54. jimbokun ◴[] No.12511412{4}[source]
He raises the net happiness. He does things no one else does and is a joy to watch. It's like saying if a great musician never lived people would just listen to different music. Sure, but there would be a certain joy and pleasure people never would have experienced, and never realized they were missing.
replies(1): >>12511942 #
55. robotresearcher ◴[] No.12511470{6}[source]
I bet he has made one or more rich accountants.
56. gameshot911 ◴[] No.12511620{3}[source]
The world is a better place when our desires are attained.
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57. maroonblazer ◴[] No.12511637{4}[source]
Segmenting a market, analyzing user needs, determining optimal pricing and developing effective messaging (among other things) is wasteful...how?
replies(1): >>12512355 #
58. Bakary ◴[] No.12511702{4}[source]
Desires are almost bottomless though
replies(1): >>12512563 #
59. karmelapple ◴[] No.12511724{6}[source]
Maybe not crime, but also stops people from doing any other bad things.

Not to mention the good social bits of being a fan of something and being able to bond with strangers over fandom.

replies(1): >>12512375 #
60. WWKong ◴[] No.12511942{5}[source]
If they never realized they were missing something, then nothing was lost. Net happiness = same level.
replies(1): >>12513483 #
61. dv_dt ◴[] No.12511990{7}[source]
"During the first quarter of 2016, Tesla delivered over 25 MWh of energy storage to customers on four continents. Over 2,500 Powerwalls and nearly 100 Powerpacks were delivered in North America, Asia, Europe, and Africa.[33]"

https://en.wikipedia.org/wiki/Tesla_Powerwall

I don't know if those were still pilot program devices or if they've hit some level of regular production. 2500 units is still a good start.

62. thr0waway1239 ◴[] No.12512001{3}[source]
I ask as someone who is vaguely familiar with Taleb's ideas but didn't read the book:

That is a really fascinating point, especially considering this is literally a case where you are "betting your (future) life" on the low probability outcome event.

I mean, what is your hedge in that case? Does Taleb talk about that too?

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63. pvdebbe ◴[] No.12512047{4}[source]
Even Hitler's desires?

One has to remember that "a better world" is a very subjective thing.

64. intended ◴[] No.12512153{4}[source]
So what happens to the batteries when they go bad or old?
replies(1): >>12517672 #
65. AstralStorm ◴[] No.12512355{5}[source]
Segmenting a market is often suboptimal. See how Intel is "segmenting" their CPU market by hard locking features in "consumer" CPUs. This effectively means they are not available unless you pay big big money.
replies(1): >>12512638 #
66. AstralStorm ◴[] No.12512375{7}[source]
Also stops some people from doing good things - they'd be bored, so they'd either go after politics (yup, either big or local), actual art (ok), maybe make something as in crafts (probably best outcome).
67. entwife ◴[] No.12512563{5}[source]
If only there was a way, a vehicle so to speak, for liberating ourselves from the suffering of our desires.
68. saiya-jin ◴[] No.12512634[source]
Now this is an insult to number of jobs which are chosen by skilled enough to get better paid jobs but they won't. Examples - doctors & nurses, most people in disaster orgs like Red Cross, Doctors without Frontiers etc. and I am sure many other types of jobs out there (corporate vs creative job, anybody?)
69. davidivadavid ◴[] No.12512638{6}[source]
Why is that suboptimal? It certainly is suboptimal for consumers in the short run, since it helps Intel increase producer surplus. How that producer surplus is used to create better technology has a pretty important role in determining whether it's optimal in the longer run.
70. piedradura ◴[] No.12512834{4}[source]
The problem with low probability outcome events is that when you repeat the same experiment many times that event can happen with high probability.
71. piedradura ◴[] No.12512841{3}[source]
A viability study is not something to reject.
72. brain5ide ◴[] No.12513000{5}[source]
Well you know, we were talking about Elon Musk after all. So that kinda assumes, that we're not talking about jobs for survival kind of situation. Even if it is the vast majority of population.
73. awesomerobot ◴[] No.12513210{3}[source]
Hitler thought he was making the world a better place.
replies(1): >>12513283 #
74. sbuttgereit ◴[] No.12513283{4}[source]
As did Pol Pot and other mass murderers.

This is why I distrust those that want to direct us toward a magical, "better world" and and do so by decrying voluntary exchanges between people as counter to their vision.

75. metaphorm ◴[] No.12513374{4}[source]
I think you should just read the book(s). They're very well written and enlightening.
76. canicode ◴[] No.12513483{6}[source]
You could say that for just about anything, including Tesla...
replies(1): >>12515334 #
77. BasDirks ◴[] No.12513704{4}[source]
Are you sure the net happiness from football was really raised by Messi or did he simply shift it to his county and teams he plays for?

Yes

If you take away his great play doesn't it just make other players stick out more, and fans would derive happiness from other players?

No

Greatness isn't ONLY about being greater than others.

78. erjjones ◴[] No.12513808[source]
> What would be the utility delta compared to the current state of the art times how many people it would affect?

Translation: The change of something being useful, profitable, or beneficial multiplied by the potential target audience.

IMO - What a great measure to determine the scale ability of an idea.

79. ◴[] No.12513912{3}[source]
80. ◴[] No.12514010{3}[source]
81. crc32 ◴[] No.12514124[source]
I think quite a few of the respondents are missing the point because you said that most people choose to "maximise profit" which has a negative connotation. (Or apparently so, in their minds)

I read your comment as saying that most people choose a job based on maximising utility; one component of which is financial reward; and that top-class sports is one industry in which there is generally a consensus that "people are paid too much" - i.e. that there is a distortion; that perhaps their love of playing and the positives they contribute to society are already well priced in to their wages.

Also, it seems entirely reasonable to me that any market distortion implies an opportunity cost - that aggregate happiness; over time, would be greater; if we spent a little less on footballers and a little more on e.g. imho; carbon capture!

You even explicitly state that it would be extremely judgemental to blame individuals - i.e. footballers - for maximising their individual happiness at the expense of human society as a whole; and that instead this should be blamed on a market or political failure.

82. muninn_ ◴[] No.12514891{7}[source]
How are you defining wealth?
83. Theodores ◴[] No.12515334{7}[source]
Tesla make a lot of people happy but there must be accountants at Jaguar, BMW etc. who have not enjoyed losing sales to the California start up. However there are many happy Tesla customers and only a small handful of motor company accountants. Obviously there are sales staff too plus suits in the oil companies who have been pained by Tesla, but still the balance is a net happy one. Compare with Tony Blair, makes his business cronies happy but inflicts more misery.

Footballers do have a connection with their fans and it is their admiration that is sought far more than money. So they are very much in it to bring happiness to the world, to put on the show. I don't see them working for free though.

84. lutorm ◴[] No.12515423{4}[source]
Speaking from my own experience, I've known quite a few people working in factories that didn't want "desk jobs" or to be "paper pushers", even if those jobs paid more. And some even had the turned down promotion offers to prove it.

I didn't miss the opportunity bit. It seems your logic there is backwards: It's precisely if I can choose to do whatever I feel like that I have opportunity, and precisely those people you agree may have other goals than maximizing profit.

Sure, if you have no money and have an "opportunity" to flip burgers, most people would take that job even if they were vegans. That's survival, but I don't think that says much about what they would choose to do.

A better example I think is when people decide to go back to school because they've realized they only get shitty jobs without education. In that situation, they could choose to do whatever. Do most people find a list of best-paying jobs and pick the one at the top to decide what they should study? I think they do not.

85. collinmanderson ◴[] No.12517672{5}[source]
Yes, likely you'd need to get all-new batteries every 10 years[1] or so. (And likely recycle the old ones.)

The good news is that batteries are getting about 8% more efficient every year (price per kwh) [2]. So 10 years from now batteries will be 1.08^10 = ~2.15x as efficient [3].

So when you replace them, they'll cost half as much for the same amount of energy storage (and probably half the space too). It's basically Moore's law for batteries except slower.

[1] https://www.tesla.com/powerwall

[2] https://cleantechnica.com/2015/03/26/ev-battery-costs-alread...

[3] or is it 1/(.92^10)? That would be 2.3x

86. tim333 ◴[] No.12517750{4}[source]
I guess a hedge in that case would be to try to arrange things so they come out OK if you miss the goal. Like if you want to be president aim for the fail case being a successful lesser politician. Not sure what Taleb says.
87. babyrainbow ◴[] No.12519665[source]
> utility delta

I get a feeling that this phrase is going to be popular among Elon fanboys.

88. jernfrost ◴[] No.12519935[source]
Really you chose your career only from a profit motive? What are you, a sales person?

I certainly did not chose my profession from a profit motive and neither did most of the people I know. We did what we did because that is what we like or enjoy. Of course practical issues of making a living wage factors in.

I make a high salary now, but that is rather by accident. I just happened to be good in STEM subjects and enjoy math and programming. I didn't pursue it because it was an optimal economic decision.

I can fully relate to Elon Musk. When I try to pick a programming job e.g. I factor in many things such as salary, colleagues, location etc, but actually how useful the product seems is a major factor for me. I am generally willing to sacrifice salary to do something which I feel helps humanity more. E.g. I'd day a pay cut to develop a medical application over a horse betting application.

Of course money isn't irrelevant. If there is just too little money in medical software then I'd suck it up and sell my soul to betting, big oil or whatever ;-)

89. purplelobster ◴[] No.12519971[source]
Wouldn't a better formula be the expected value of the outcome: utility delta * #people * probability of success?
90. michaelhoney ◴[] No.12524406{4}[source]
Yes. Example: https://en.m.wikipedia.org/wiki/General_Motors_streetcar_con...
91. spaceknarf ◴[] No.12530337{4}[source]
Taleb investment advice: put almost all of your savings in super stable investments, like treasuries. Use the rest to bet on unicorn startups, or highly leveraged options (as long as those options have a limited downside and an unlimited upside!). I'm not quite sure how to apply this to one's career.