Entheogenic gnosis,
I was also very interested in this "observer effect," which is the idea that we can change the activity of subatomic particles simply by perceiving them.
Neil Tyson was on the Joe Rogan podcast, and he completely disavowed this idea. It's about an 8 minute video, check it out:
Quantum mechanics is a relatively new area of scientific inquiry, so who knows what we will find. But apparently the observer effect is very misunderstood in the laymen community (in which I include myself). Much to my dismay, turns out it's not very mystical. The instruments used to measure the particle cause a change in its position.
Many mysteries remain, but it sounds like this one has been solved.