Scientific information is primarily 'human perception'.
I have given that a lot of thought, and yes, I have to agree that the accumulation of other peoples' thoughts will subtly influence our behavior. We only have to watch and listen to the news every night, and a topic repeated over and over will slowly creep into our thought pattern and before we know it, it will be our own!
Yes, it does sound simplified, but maybe we can start be really being aware of our thoughts, then asking the question if we really like what's swirling around in our heads, and then making a choice about what kind of thoughts would really be beneficial not only to our growth, but to the growth of mankind.