First person know is belief. To some extent: this is just faith! Yes we have faith that the laws of physics wont change tomorrow, or we remember yesterday happened etc. Science tries to push that faith close to fact by verifying the fuck out of everthing. But we will never know why anything...
The other "know" is some kind of concept of absolute truth and a coincidence that what someone belives matches this. Whether that coincidence is chance or astute observations or in the paper's case: both.
First person know is belief. To some extent: this is just faith! Yes we have faith that the laws of physics wont change tomorrow, or we remember yesterday happened etc. Science tries to push that faith close to fact by verifying the fuck out of everthing. But we will never know why anything...
The other "know" is some kind of concept of absolute truth and a coincidence that what someone belives matches this. Whether that coincidence is chance or astute observations or in the paper's case: both.