Whatever, I don't have time to become an expert in everything, much less the desire. I choose to focus on my small area (which has changed over time, both because my interests change and because my next job needs me to learn something) and trust the rest.
But isn't this part of the point? Philosophically science is about being interested and studying broad range of topics and areas to judge everything for yourself and make your own conclusions, not trust expert opinions. In my experience, whenever I have to rely on an expert opinion I usually feel bad later when I acquire more knowledge in the area myself, as those opinions are almost always wrong.
This statement doesn't even make sense, where are you acquiring this knowledge if not from experts? Are you out there doing field research and conducting your own scientific experiments on every subject you're interested in?
I'd love to hear a couple examples of which "expert opinions" you've disproven for yourself and where you acquired the supporting evidence.
You are confusing opinions with evidence and facts. Obviously you acquire knowledge by reading papers where people are doing research and experiments and presenting evidence, analytics and all the facts from which you can make your own conclusions.
OK, I don't think that this delineation is actually as black and white as you're making it out to be, given most subjects are complex enough to require nuanced interpretations of data/facts, but I'll give you that in some instances there is a fine line, and there are certain areas where there is a lot of disagreement even amongst experts.
Still, an expert, by definition is just someone that has "comprehensive and authoritative knowledge of a subject." You could argue that as soon as you've acquired enough knowledge on a subject to form an accurate opinion, you have yourself become an expert.
Although I'm guessing when you're referring to "experts" you mean "establishment experts." For example, your average doctor whose spent decades studying medicine as opposed to your online research on how to best treat/prevent a certain ailment (you didn't provide an example so I am just referring a fairly common one). What's the difference between your expertise and theirs? On one hand, they have decades worth of rigorous academic study and personal experience over you, on the other hand, you may have a "fresher" perspective that may be devoid of certain institutional biases. I would just strive to stay humble.
I may have looked more in depth into my condition (though that may imply listening to crackpots) than doctors who despite years of study may not be as in depth as me. There is a lot to the entire human body (which is why doctors refer people to specialists, but they need to choose the right specialist which isn't always easy)
"Philosophically science is about being interested and studying broad range of topics and areas to judge everything for yourself and make your own conclusions, not trust expert opinions."
Not quite. It's observation of the world around you. It doesn't preclude experts' opinions, it takes them into account. Reinventing the wheel isn't the goal of science. The goal is to understand why a circle might be the best shape for rolling and under what circumstances it might not be.
More specific to current times, ignoring the advice of epidemiologists with respect to masks and social distancing is proving to be costly in life and economy.
"In my experience, whenever I have to rely on an expert opinion I usually feel bad later when I acquire more knowledge in the area myself, as those opinions are almost always wrong."
What you're describing was true in the Renaissance, but it's incredibly, achingly difficult for someone to gain expertise in multiple areas of science in this era.
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