There is a Chinese proverb that says, “The beginning of wisdom is calling things by their right names.” Wanting to know the truth about things is a pretty natural thing to feel, and for some an important part of their calling in life. Interestingly, there is often no feeling of “wanting to know the truth,” unless one suspects that what is being passed off as the truth isn’t true. As long as there’s no reason in your mind to ask questions, there’s no feeling of needing to know the truth.
Here’s another quote I like from astronaut Neil Armstrong: “There are great ideas undiscovered, breakthroughs available to those who can remove one of truth’s protective layers. There are many places to go beyond belief.”
Personally, I will take a terrible truth over a placating lie any day of the week. It’s often the only way I can feel content. And in my personal experience, accepting terrible truths has freed my mind and spirit to seek and follow the things that make me feel blissful. If there are big things in the world that are broken on purpose, then I don’t need to be virtuous and try to fix them, when I would do just as well (or better) to take care of myself instead of sacrificing my interests for some greater good that is all but unfixable. Many, many other people can’t function this way. I’ve seen it happen many times. If they are challenged by something like what you are suggesting in your question, they simply cannot entertain the thought, because it would wreck their system of belief. It would take away their sense of hope and meaning in the world and feeling that way can be very painful.
Here’s something else I’ve learned… other than for your own sense of satisfaction or conviction, it (in one sense) doesn’t really matter what you believe. Suppose you learn “the truth” about 9/11? How will it change anything other than how you see the world and respond to it? Will it undo 9/11? Will it undo the violence that has been committed since? Will it undo the changes in our culture and our changing relationship to government? There are many people who “know the truth” about 9/11 and have for years now, but has that created change?
At the same time, your belief does matter on a different level. Let’s say you learn enough to “know the truth” about 9/11. Let’s say that “knowing the truth” leads you to believe that there are forces in the world beyond your control that commit evil conspiracies. For the sake of simplicity, let’s call that “bad magic.” If you came to that conclusion, would that be the end of the story or would you go further and imagine that if there’s bad magic in the world there must be “good magic” as well. Coming to that kind of conclusion sort of turns you into someone who is now on the lookout for evidence of good magic—a kind of person that you probably cannot become if you are not first given cause to feel that what is being passed off as the truth is a lie. If you grow up Christian, for example, believe you are born a sinner and that your only redemption is through God or Jesus, and you never question this, then you will likely never entertain the belief that you already have divinity inside you and then seek to understand that divinity. Only a person who would stop to ask the question would reach for that kind of conclusion.
Here’s something else to consider. Let’s suppose it’s safe to say that we now live in a highly connected world and that as a result it’s very difficult to keep secrets. Way more difficult that ever before. If you are trying to hide the truth, how do you keep it a secret? How do you keep it a secret if someone figures out the truth and starts telling everyone, or if the secret is something that happens in broad daylight? One answer is to flood people’s minds (or flood the Internet, TV, radio, etc.) with lies, half-truths, distortions and “junk thoughts” (like junk food, maybe). So your brain becomes full, but not of the truth that is being hidden.
If you follow this question (the one about 9/11) to the end of the earth, you can literally spend years of your life sifting through the information, which actually will help your critical thinking skills (and shame on those folks who are chiding you for asking questions about what you’ve heard). In the end, not much will change except you as a person. If it’s necessary for you to pursue it, you will regardless of what other people say. If it isn’t, you will be persuaded by the statements above. There are plenty of other questions in this world to follow and they all yield truths as well, so choose what interests you and what you think will lead you to greater understanding or bliss or truth with a capital “T” if such a thing exists.