It's soo easy to fool humans
We want to trust our eyes and ears by our very nature.
We want to trust each other
That's where things go south
The most easy truths to hide are the ones that are most unbelievable.
Sasquatch could walk up and sing an Elvis song to a normie and his brain would not allow him to believe that it just happened. The brain will block out anything it cannot properly process.
Interesting to note, that the brain might not process such a shock as for example "Big Foot Singing Elvis" instead as say your mother in law instead.
Human brains are weird.
Suffice to say, that unless big foot were to inflict a stimulus such as pain or pleasure, the brain might not be able to comprehend it.
Why so many can't handle the truth. So the brain makes up a new truth it can handle.
And why so much evil hides in plain site and why so many can't/won't accept it.