If you are using the dollar right now, what pain are you taking? None. What's actually happened? US added some tariffs and became a bit more isolationist and the Fed has lost some independence. Might not bode well for the future but has very little impact on today.
Even if the dollar was "dead" the time and effort required by the world economy to switch away from the dollar system would be enormous so not much is likely to happen quicker than a few decades.
This warrant's a little caution, there may well be some negative selection bias here. The banks most likely to go bust are the ones most desperate for cash so they offer the highest interest rates... If it's FDIC insured you are good up to $250k but I don't know exactly how much inconvenience is associated with your bank going bust and potentially collecting FDIC insurance.
UK rules differ from the US there is a 3-point test for insider trading:
1. The information has to be specific - Yes - you should sell Boeing
2. Would a reasonable investor take this information into account when making a decision to trade - Yes - this seems quite clear
3. The information must be non public - IIRC disclosure to a large group of people - in this case the perhaps 200ish people on the plane knowing it had a problem would probably count as the information being public and thus this test is not met and you are free to trade - I think the bar is around 30 people
I knew all those hours spent in compliance training would come in handy one day!
Quant trader here... I'm a big seller of this list. Making money tends to be a relatively empirical endeavor. It's all about having information about the future and using that in judiciously way and less so about any particular theory or model. I see someone else mentioning Grinold and Khan "Active Portfolio Management", I can't recommend it enough, it's basically a how to for making money quantitatively in a principled way, there are lots of "tips and tricks" that go on top of this and it really helps to have some good intuition for the space you are trying to operate in (by that I mean understanding the eigenvalues and eigenvectors of your risk matrix). T-costs are also extremely important and the main "enemy" it's trivial to make money if you don't have to pay to trade.
Steven Boyd at Stanford and his students / colleagues are probably the richest seam of up to date portfolio optimization wisdom. If you are using python you shoult probably be using CVXPY to build your portfolio. He has lots of good papers, e.g. see [2].
Of course you also need an "edge", that information about the future, and that's the jealously guarded part...
The opinions on consultants in the thread is largely negative and it's suggested hiring them is a sign of organisational dysfunction. If you can find information on consulting spend in annual reports you could create a "consultant factor" for stocks and see if big spenders underperform.