If you read about the history of markets, you find that the market gets things wrong in a spectacular way with enough frequency that one must always do some basic research on the fundamentals of what you're buying.
This works both ways. You might be spectacularly wrong. So the question is how do you decide which it is?
Too many people start with the idea that they know they are right based on some core belief they have, but what if that belief is flawed?
You can go back a few years here and read me argue with John about why bitcoin won't work. I think my biggest issue was that the government would shut it down. I think this was valid back in 2011 or 2012, and I've read lots of people suggest that the government could have at the time, but they totally missed the boat. Today, any government attempting to shut it down will just shut their citizens out of participating in the future. The bitcoin network clearly can't be shut down, so all the government can do is prevent citizens from having access to it, and once you go down this road, you end up like North Korea.
Another concern people have is that its just the tulip mania, a pump and dump scheme. Ok, lets look at that. The tulip charts clearly show a huge run-up, like bitcoin, followed by a dump, which has also happened to bitcoin, but then those tulips never came back, very much unlike bitcoin. In fact, bitcoin already had at least 4 of these cycles. So its not really fair to compare it to the tulip mania anymore when Bitcoin clearly has been making higher highs and higher lows on the chart.
I think most people are stuck at the stage where they assume the government has to control everything. They think that if they give the government the power to control the money, to set interest rates, to decide how much they want to devalue the currency, to choose which country to invade, to decide which industry should be supported (hello communism), etc., that this will make the country strong and the citizens better off. But when you really look into this, you actually learn that the US prospered when the government did none of this.
The die hard Bitcoin haters all have a deeply rooted core belief, and this belief prevents them from getting it. But this core belief is flawed and its likely quite easy to reveal this if people are just honest with themselves.
Most of the time, the core belief is actually a lack of understand about the belief itself, but people don't want to learn about how it actually works. When people say that bitcoin could never be used as money, I asked them to explain to me how money works. Where does money come from? Its very easy to explain where bitcoins comes from, but where does money come from? Most don't know. They blindly trust the government to control money, but they don't know where it comes from.
If you bought a house with a huge back yard, and the developer comes in one day, moves the fence, reduces your back yard to nothing, and starts building a new house on land that was yours, you would be pretty upset. But when the government distributes trillions of dollars, that they don't have, to lock you in your house, thereby devaluing your own money, and claims it won't be inflationary, nobody comes to the conclusion that the power to control money should be taken away from the government. You have no problem screaming at the developer who steals your backyard, but you are happy to let the government continue to do what it wants to do because taking this power away from the government seems like a scam to you.