There are always black swan events to consider. Ignoring those though
We will probably see a financial crash in the near term
https://www.ccn.com/u-s-stocks-havent-been-this-overvalued-since-the-dot-com-bubble/
https://www.efginternational.com/uk/insights/2022/Yield-curve-inversion.html
There are many more indicators.
In terms of general problems for the future
A lot of places have a lot of problems, including ones not necessarily considered as closely as they ought to be or be as widely known.
2000 years ago your civilisation was dictated by water. 2000 years later it will be again -- China has some major problems (see pollution and general lack, to the point they are doing a crazy plan to pipe it across half the country), the US has some horrendous ones set to pop (the giant aquifer, underground lake if you want to think of it that way, that does much of the southern US and California is... critically low and refill times are in the thousands of years. Maybe they will get by or people will stop growing food in the desert (California does a lot of food for reasons known only to them).
https://www.usgs.gov/special-topics/water-science-school/science/groundwater-decline-and-depletion
India, Bangladesh, Pakistan, the orient, a good chunk of a lot of Africa... all have their own concerns here (rising levels, sinking, lack of water to feed the cities)
Population crisis.
It takes 2.1-2.3 births per woman to sustain the population (not grow, sustain) and rates are some 1.? in much of the developed world. The 0.1-0.3 thing is to account for car crashes, uggos and gays.
This means populations will age. Most of those have not saved properly for retirement so will be reverse mortgaging things (more on that later) and more and money will go to supporting the aged (not exactly a plan for growth).
Governments will probably try importing people from elsewhere, which works both to destabilise your own country (you can put all the "multiculturalism is our strength" adverts you like out but there is a limit on how many you can bring in without them forming enclaves) and others you pull from -- you are going to pull in all the smartest and hardest working people first (Joe Random from deepest, darkest Africa is not much good, Joe Random's brother that happens to be a medic/engineer/tradesman is a different matter entirely) and that means the original country lacks those that are likely to improve things.
https://www.cia.gov/the-world-factbook/field/total-fertility-rate/country-comparison
Anyway lack of people paying in means the pension schemes which were designed in the 1950s and 1960s when that number was far higher and people lived less on average after retirement... yeah your government pension is barely worth the effort. Also all those people from the 50s and 60s and 70s (see also baby boomers) are retiring about now (2020-65 = what?).
Housing.
Most of the world is waiting for China's housing market to finish imploding (and it will, or China will spend all it has to prop it up and it will still go pop) as it was a known scam for years and the first real cracks happened late last year/earlier this year.
The US is not outside concern either. There is both a lack of it (look around and see what 4.5x annual salary, the high end for a mortgage.
https://www.fool.com/the-ascent/research/average-house-price-state/ https://www.indeed.com/career-advice/pay-salary/average-salary-in-us ) and what is there is cheap junk that is going to start falling over before long, and is built in an incredibly wasteful way (one that is also psychologically awful but we can probably ignore that for a bit) -- average terraced house can afford a smaller run of sewer pipe, electricals and more, which has a lifetime regardless, compared to the US style "single family home" model of everybody has a quasi mansion in a pleasing arrangement all nicely apart and a little HOA to make everybody's life a nightmare for having grass too long.
Related to housing is infrastructure. Roads, bridges, electricity. It has been ill maintained/replaced for a while now and the bill for that might well come basically all at once (mainly as it was built all at once).
Actually where I said psychologically awful we probably get to bring that back in.
Nobody knows their neighbours (awful house design remember), their work won't afford to buy a house, raise some kids, retire or the like, not that you probably will be able to find a wife even if you wanted (age of marriage is way up, rate of marriage way way down in general rates of virginity/sexual encounters for most of the population way down, divorce rate is maybe 50% for first marriage with it only going up for later ones, happiness in marriage is not much better and that is before the pill and dating apps* are taken into account).
You give your young male population no hope of a future, no community, nobody to love... stuff gets very exciting then, and has done throughout history (pick a big war in history, go back 5-10 years and see what goes there). Your best hope is the obesity epidemic (which is also costly on healthcare) means they don't fight so good (
https://www.cdc.gov/physicalactivity/downloads/unfit-to-serve.pdf ) or can be bought off with burgers, that or you get your deaths of despair numbers up beyond the rookie numbers they are at now (
https://www.brookings.edu/blog/broo...dle-age-at-faster-rates-than-minority-groups/ ).
*distance travelled to find a wife notable increased considerably with the advent of a decent bicycle (
https://www.theguardian.com/environ...pools-secret-history-of-19th-century-cyclists ). Now think what goes when it is a swipe and a cheap plane flight...
Pick somewhere with stable weather, with stable politics, lacking fat people, with a stable population, with a food surplus and not much need for fertiliser import, and a part of it that won't vanish under rising sea levels... I don't know there is such a place.
As much as I adore doom and gloom future predictions (and I really do -- I very much finding myself in the content to watch the world burn camp) then I think I will go with videos
and a recommendation for that channel in general. Has some good stuff there if you did want to go further.
If you want more of a primer on China then
for a series
choice video to join it
and another for a more financial overview