When I started working decades ago, we were taught how to use bent bits of fence wire to find underground pipes before digging
I literally found scores of pipes that way, and saw dozens of other people do it regularly. It was even taught at a local agricultural college as part of the horticulture course
Then someone told me it was a myth and doesn't work, so I set up a blind test with a hidden bucket of water and I utterly failed to find it
"Sometimes the things that may or may not be true are the things a man needs to believe in the most.
That people are basically good; that honor, courage, and virtue mean everything; that power and money, money and power mean nothing; that good always triumphs over evil; and I want you to remember this, that love... true love never dies.
You remember that, boy. You remember that. Doesn't matter if it's true or not.
You see, a man should believe in those things, because those are the things worth believing in."
I believe that the reason why so many people are going crazy in America at least is because they are approaching the end of their life and they have been told the whole time they've been alive that they would be living through the end of times, and if it becomes true then their lives have not been wasted but if it is not true or if it doesn't happen until after they die then their lives have been wasted and it's driving them crazy.
My BS, unprovable hypothesis: The Golden Age of Piracy was actually a successful Socialist movement, with Nassau being a disruptively successful enclave of Socialism in action. The pirates deeply threatened the budding power structures in the US (not conjecture) and the entrenched powers in Europe. While some powers, most notably royalty, were willing to use pirates as mercenaries (privateers), there was an excess of democracy and human concern (somewhat my conjecture) among the Nassau pirates. The Nassau pirates had pensions, a form of worker's comp, disability, democratic command structures at sea, and healthcare (such as it was given the era). According to the historical texts on the Nassau pirates, there were almost no written records, which strikes me as especially odd since they had so many long-running financial and governing processes.
That global democratic socialism can work. Currently the only states successful in implementing it are oil-rich nordic countries, and I want to believe it can work elsewhere but it'll be hard to prove.
The Pizzagate conspiracy was created to cover up any media coverage of the police reports from the early 90s when Trump was hanging with Epstein and dumping 'used' underage girls at a pizza parlor the next morning.
What we know about the age of the human species, and other life, the earth, the universe etc. depends on so many guesses that we know essentially nothing.
Specifically, I think that elements and materials may have changed some of their properties and behaviour at some time in the past.
We do not know that. Most people just assume they have remained constant at all times. And we build quite many of our guesses on this assumption.
If, for example, C14 has changed it's disintegration rate at some time, then quite many of our guesses would be very wrong.
Inductive reasoning. I don't have any non-circular reason to believe that previous experience should predict future events. But I'm gonna believe it anyway.
Most of my moral convictions aren't provable because the most basic ideas are simply axioms. "You should be a good person" cannot be justified in a way that's non-circular, and defining "good" is also similarly arbitrary. The only true "evidence" is that people tend to agree on vague definitions in theory. Which is certainly a good thing, imo, but it's not actually provable that what we consider "good" is actually the correct way to act.
I have started creating a moral framework, though. I've been identifying and classifying particular behaviors and organizing them in a hierarchy. So far it's going pretty well. At least my arbitrariness can be well-defined!
I think our model of cosmology is likely way more wrong than we think. I LOVE it when we get new data that challenges our accepted notions, which is why I'm loving all the "how are these ancient galaxies so big" stuff coming out of Webb.
My running theory is that what we call the universe is an inverse version of what we would consider to be the real universe, were we not stuck in this crummy inverted one.
Assuming it's possible to create a simulation, the odds of us being in a simulation is 50%
But if you can create one simulation, maybe you can create 1 million. Or maybe you can create nested simulations.
So even if the chance of creating a simulation is 1%, but the creation of one simulation means millions are created, the odds of us living in a simulation are above 99.99%.
Another theory is the Boltzmann Brain. Basically the idea that a brain can spontaneously appear in space:
By one calculation, a Boltzmann brain would appear as a quantum fluctuation in the vacuum after a time interval of 101050 years.
Which means if the universe lasts forever, but has already reached a point where worlds can't form, there's infinite time for something as complex as a brain to suddenly spawn. Which also means it's more likely that you don't exist and are just a brain that will last for a nanosecond before disappearing, and none of this is real. In fact, in a universe that lasts forever, the fact you are a brain that will disappear in a nanosecond is more likely than you being a human with a real past.
The event horizon of a singularity is the area where time is non-linear and that is where trans-dimensional travel will be achieved where you can time travel if you build a vessel strong enough to survive the experience.
1950's Roswell aliens were simply time traveling cyborg scientists from the future of earth, studying humanities first nuclear test ranges and made mistakes assuming humans were not sophisticated enough to detect them and were shot down.
That humans are apex predators, and we have been so for upwards of 2.5 million years. Following from this, I believe that most chronic illnesses that we have today (e.g. obesity, diabetes, mental illnesses, cardiovascular diseases, arthritis, PCOS, etc.) are caused by us straying from eating diets with lots of fatty meat.
The reason for the common cold being so prevalent in cold weather is because of the cold.
My theory is that cold temperatures best suit the incubation of the germs. You are especially susceptible at night, when you can't control your breath enough to keep your nose/nostrils warm. Warm face/nose at night = you won't catch a cold.
I'm absolutely convinced of this theory. I've tested ways to keep my face/nose warm at night, and it seems to test very solidly (and I get sick very very easily). Once my room gets too chilly, I'll inevitably wake up with a cold.
EDIT: let me have the smallest conspiracy theory in the world, thank you.
The reason my memory seems to be fuzzy at times, even for some things that happened recently, comes down to the fact that I was put under for surgery back in 2011 and was under for longer than they expected due to finding something they didn't expect.
I also believe that humans have the unconscious ability to influence their relative perception of time. Think of all the times that seemed to "fly by," or moments that "last forever." I think you do this unknowingly, and it's usually connected to a heightened emotional state, which means you have an increased level of some neurochemical. I don't think there's a specific one responsible for altering our perception of time, just that they correlate.
That we have the ability to alter our perception of time is what allows us to have an "afterlife."
What I believe, without evidence, is that when you die, your brain does a massive dump of all of it's dopamine and serotonin, as well everything else, that let's your final moment be one of peace and acceptance. Additionally, you will stretch your final moments till it seems a lifetime, all while hallucinating massively because of this huge dump of neurochemicals into your neocortex.
So during your final moments, whether you believe you're going to a heaven or a hell, you're right. Because that's exactly where you'll imagine yourself. If you think you'll bounce around a field of billowy clouds while visiting loved ones with all your pets by your side, then you will. If you think you deserve to drown in a river of hellfire while the world laughs, then you will.
As an athiest, it kinda gives me something to look forward to. One final hurrah before nothingness.
When people are left to enter deals and economic arrangements as they see fit, it produces the most overall wealth, both for those at the top and those at the bottom of the economic hierarchy.