I have read about psychokinetic or telekinetic phenomena as a description of paranormal events which were said to be caused by the thoughts of the brain,and the,body, but never how it works, and according to David Fontana there is no scientific evidence that on a macro level these events are possible.
And we still have no idea in science why photons stop acting like waves as soon as they are observed.
With psi phenomena - science has not even reached square one. Mainstream science, especially the materialists are adamantly opposed to admitting any psi phenomena, and dismiss it regularly, often without even examining 100+ years of empirical research. Square two - how does psi phenomena work? Well, there hasn't really been any kind of substantial scientific theory that everyone can agree upon at the moment. Probably the best theoretical framework that was established was a psychological one via Carl Jung. Frederic Myers did provide very clear categorization of psi phenomena in his book "Human Personality".
Other than that - there hasn't been a whole lot else. There is too much bigotry toward psi phenomena to begin with - to the point now where scientific research is being discouraged, people are being ostracized or their biographies (at least on Wikipedia) are being libeled if they have had anything to do with psi research.
I think quantum physics may provide some clues regarding how psi phenomena might work. Whereas Carl Jung provides a pretty seminal picture of the psychological implications of psi phenomena, and even when it can become more prevalent in an individual's life, and NDE research points to the possibility consciousness is actually more aware and more comprehensive when the brain is no longer active (which confirms what Frederic Myers theorized early on in Human Personality) - quantum physics might provide some kind of physics underpinnings to psi phenomena i.e. the relativity and flexibility of time and space, the non-local attributes of the most fundamental particles we know exist, and the apparent intertwined relationship between consciousness and the reality we observe (although there are other interpretations but they seem even more far fetched IMO).
But no- we still do not know how psi works. But science does not exclude psi. That is a completely erroneous assumption by David Fontana. Heck in science, we still don't even know what gravity is. And we got scientists walking around today saying dark matter exists - just so certain equations that astronomers and physicists have had about the universe now for decades - continue to be valid, even though no one has a clue what this dark matter really is - and no one has observed it. Dark matter may turn out to be yet another Hidden Variables faux pas - and wouldn't that be pretty amusing?