jamestimmins
14 hours ago
AI seems to struggle most when it has to make decisions with lots of trade-offs, especially where the context or implications of various decisions are nested, which is presumably why it struggles to write full software systems that are well-designed.
By comparison, financial advice is pretty simple, and there is a universally agreed-upon approach that most people should follow to maximize long-term financial health.
kccqzy
12 hours ago
This is the common fallacy of “AI is terrible in my own field of which I have deep knowledge, but AI is totally fine in this other field of which I only have cursory knowledge.” Even ignoring all other aspects of financial advice and only focus on saving for retirement, there are so many topics involved like asset allocation glide paths, tax advantaged accounts, safe withdrawal rate, sequence of return risk, etc etc.
Financial advice is universally agreed upon, to the same extent that advice about software engineering is also universally agreed upon, you know, like write unit tests, write maintainable code, etc. But the devil is in the details.
hibikir
11 hours ago
You are comparing to the almighty, not to the kind of financial advisor most people would find while looking at random. Between those with very high AUM fees, those selling bad vehicles that they get kickbacks for and such, people are basically getting robbed already.
It's not that one cannot get very specific, technical advice that helps, but someone without much financial literacy cannot tell someone doing honest work for a reasonable price from easy to find scammers with a marketing budget. The AI isn't going to get everything right, and it's not going to be easy to send good, proding questions to double check things without sufficient financial literacy, but that boring baseline is miles ahead of what most people get, as it's not trying to deceive you professionally, at least for now.
MBCook
11 hours ago
They are also assuming that the comparison is to a financial advisor and not either nothing or a relative/friend who may or may not give good advice.
marcosdumay
9 hours ago
LLMs are mediocre for every topic that people talk about all the time.
When it's software development, it just happens that your mediocre code is incredibly bad. When it's financial advice or diet, it just happens that you mediocre advice is either the correct "do the hard thing, there is no magic" one or some crazy shit that will ruin your life.
budsniffer952
3 hours ago
One of the most hilarious things coming out of this community, easily disproved, is how high it thinks the code quality of the average developer is.
If AI writes code at the 51st percentile it's raising the bar.
latexr
3 hours ago
> This is the common fallacy of “AI is terrible in my own field of which I have deep knowledge, but AI is totally fine in this other field of which I only have cursory knowledge.”
Gell-Mann amnesia effect.
https://en.wikipedia.org/wiki/Michael_Crichton#%22Gell-Mann_...
aprilthird2021
13 hours ago
> By comparison, financial advice is pretty simple, and there is a universally agreed-upon approach that most people should follow to maximize long-term financial health.
What will AI do when those rules, which it's trained on their repetition so much, don't apply anymore? ~8% annual stock gains for the next 40 years may not hold and an 80/20 stock/bond ratio may not be as wise in upcoming decades
mjr00
13 hours ago
Stock/bond ratios are way too advanced for what's qualifying as good advice here:
> AI consistently advised people to save during their working years, draw down savings in retirement, invest heavily in diversified stock funds, and reduce stock exposure after age 45.
This is analogous to saying to an aspiring software developer, "You should write clean and testable code, have clearly defined API boundaries, and a repeatable build process." All very true, but also so general and basic that it's not helpful.
blharr
10 hours ago
And similar to the low quality of developers...
If you are even thinking about writing clean and testable code, having clearly defined API boundaries, and keeping a repeatable build process, you are probably already significantly above average.
If you are even trying to save, invest diversified, and manage risk as you age... you're probably doing better than like 80% of your peers financially
inigyou
2 hours ago
Uncle Bob is a worse programmer than Casey Muratori, and he does nothing but think about clean code.
grg0
13 hours ago
Right, that's the 'what', but not the 'how'.
> Prompt: but I don't have enough money to save, I can barely make ends meet.
> AI: I see the problem now---If you don't have enough money to save, and reducing your expenses is not an option, then the answer is clear: make more money.
anigbrowl
12 hours ago
I don't know why you're being downvoted here. A huge amount of 'financial advice' boils down to 'stop being poor,' which is to say it's about what to do with your economic surplus rather than what to do if you don't have one and aren't long on avocado toast.
budsniffer952
2 hours ago
Because at a certain point, "spend below your means, save as much as you can" is the financial advice most people are unable to follow, yet determines 90% of the outcome.
sheepolog
12 hours ago
I didn't downvote them, but I am genuinely curious to hear from people who "can't save money", and try to understand why that's the case. My assumption is that a large percent of them are spending way more than they need to, but that could easily be an incorrect stereotype.
jandrewrogers
9 hours ago
Federal Reserve studies indicate that 10-15% of the US population can’t save money due to fundamental financial realities. That is, the necessary expenses of an ordinary lifestyle consumes all of their income. That is tens of millions of people.
There is another ~30% that expand their lifestyle to consume all available income. Not saving is a choice for this part of the population.
sheepolog
23 minutes ago
Thanks; can you share a link to these stats?
singpolyma3
11 hours ago
It's actually almost certainly true just on the basis of basic numbers. Many people who are really actually quite poor (making say under $35k CAD annually for a family of 5) manage to make ends meet and even save a little. So if you make more than this but can't save any it's because you're spending on things they are not and which are therefore nonessential.
Now maybe restaurant food, name brand groceries, driving two SUVs, vacations, etc etc whatever it is for a given person are seen as essential. That's how lifestyle works after all and we often can't imagine our lives without it. So I'm not saying it's a "simple" matter of just spend less because it's often not very simple feeling. But from a numbers PoV it is possible for most people who otherwise see themselves as struggling in theory.
lazyasciiart
11 hours ago
Are you excluding all the people with disabilities or chronic illnesses or supporting children or parents or other dependents with disabilities?
sheepolog
10 hours ago
Not at all! I would guess that a sizable minority of "can't save money" people are in that position due to chronic illness or supporting others.
I have no idea what it costs to support a family member with a disability; probably varies wildly but I would guess it's about the same annual cost as raising a child? Except that annual cost never goes away.
grg0
11 hours ago
No offense, but: you need to get out of the house more. It'll answer your question very quickly.
bdangubic
13 hours ago
AI is right on the money here (pun intended)
SpicyLemonZest
12 hours ago
It's not helpful to the kind of person whose recreational weekend reading includes MIT Sloan analyses. Most Americans don't have what I suspect you'd consider a basic level of financial literacy (https://www.nytimes.com/2026/06/12/your-money/americans-fina...), and do need to be informed about things like the compounding effect of savings or the benefit of diversification.
malfist
11 hours ago
Its also not helpful to the person who doesn't. How much to save, when to save, how to diversify, what rate of exposure to equities is too much, how much to with draw in retirement? And thats just questions on the answer it gave. But what about if I have a loan bearing interest? What about if I'm self employed? What if my appetite for risk is less, greater? What if I want to retire early?
It gave vague unspecified advice that isn't actionable and didn't provide any weight to tradeoffs.
budsniffer952
2 hours ago
Sometimes I wonder if some folks have even used AI. Maybe this is your chance: AI will easily take you down a rabbit hole of financial advice beyond your ability to understand it, including up to date research. Far beyond what 99% of people would find useful or interesting.
SpicyLemonZest
11 hours ago
Why do you think it gave vague advice? The paper has a sample of provided advice in Table 1 that seems pretty specific. (I attempted to quote it, but it triggers the HN spam filters, presumably because it's a chunk of LLM generated text substantially larger than my actual comment.)
epolanski
2 hours ago
Sound financial advice is not "go all in on SP500".
Albeit that's more sensible than what the overwhelming majority of retail investors do.
Sound financial advice takes into account the financial situation, time spans, goals, risk adversity, etc.
toomuchtodo
13 hours ago
Models can be updated when foundations domain knowledge graphs are built on change. As of this comment, target date funds and pensions containing trillions of dollars adhere to the assumptions you mention (asset class allocation, growth rate and return assumptions, safe withdrawal rates ["Trinity study" aka ~4%/year], etc), and so consumers of AI provided guidance assuming these foundations could do much worse (as they already do today due to lack of information, knowledge, will, etc).
You literally just need to stick the Bogleheads forum into your AI assistant of choice for most folks, if they'll listen (which is the hardest part, imho, people want to gamble, not invest, in my experience). Prompt "What is your age?" respond "Optimal target date fund is 20XX fund based on your current age and retirement age, please confirm to set to default for investing." I suppose this will eventually make its way in some form into every banking, fintech, and brokerage mobile app chatbot in some capacity.
https://www.bogleheads.org/wiki/Getting_started
https://en.wikipedia.org/wiki/The_Index_Card
If you want to get fancy, crib off of California's now mandatory high school financial literacy curriculum for grounding.
https://www.cde.ca.gov/ci/cr/cf/personalfinance.asp
https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml...
("computah, teach me how to personal finance and invest")
gloryjulio
13 hours ago
Investing and trading is a dynamic game. If everyone has the edge of certain portfolio to out perform the average, then no one has the edge.
Similarly AI is not going to solve that. Because everyone would end up with similar AI edge until no one has the edge.
People should start with simple universal rules: Stay invested. Buy low cost diversified etf fund. Favor long term investment instead of trading. Learn something from all weather portfolio composition to hedge the risks.
inigyou
2 hours ago
When everyone is crowding into one investment that investment tends to get irrationally over-saturated. With the current makeup of the S&P500 we can predict it will dramatically crash in real value in the next five years.
kasey_junk
2 hours ago
That’s why the classic investment advice is to hedge your exposure to the equities markets, do more so the closer you get to retirement and don’t put money you need in the next 7 years in equities.
The bigger concern with the classic advice is that bonds have become more correlated with equities and our backtesting was all done during a time period where the American liberal international economic system was dominant so we aren’t sure that it will hold up to the new partitioned order.
inigyou
2 hours ago
There is a universally agreed-upon approach, but is it actually correct? Usually, investing in the thing that people have invested in for the last 20 years is a good way to buy at the top.
staticman2
an hour ago
Yes it tends to be correct because the other option, invent a trading scheme, tends to work out worse for investors who attempt it.
inigyou
29 minutes ago
Or we can admit the entire system really sucks.
donkey_brains
2 hours ago
That’s why that’s not the standard advice. It’s index stocks hedged with bonds. If you manage to buy at the “top” of your entire country’s economy, you’ve got bigger problems at that point.
inigyou
2 hours ago
Buying after any previous crash, instead of before, gave you 10-20 years of extra retirement. If you waited 10 years in cash for a crash before going all-in, you came out ahead.
ben_w
2 hours ago
IIRC, "Buy index funds. The end."
inigyou
2 hours ago
> Usually, investing in the thing that people have invested in for the last 20 years is a good way to buy at the top.