Hi Guys,
Some decisions are easy; some decisions are much more challenging. Investment decisions often fall into the challenging category. Special studies that yielded a few generic rules that do not surprise can be helpful.
There are many books and videos that attempt to provide guidelines on the decision making process. Here is a Link to a video that I found interesting and useful:
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I hope you enjoy it. It is well worth the 20 minutes of time that it requires.
Added thought: The video emphasizes the distinction between risk and uncertainty. Investing outcomes are highly uncertain. As Volaire observed, "Doubt is not a pleasant condition, but certainty is an absurd one". He wisely anticipated the marketplace long before it existed. Reserves are essential to protect against its uncertainty.
Best Wishes