They should carry the experiments further (insofar as the double slit experiments go.)
Take two different cameras, and put them each under pyramids for over a day. But under one camera, put one set of instructions for the particles, and under another camera, a different set of instructions. (something like go left, go right, act like a wave, or a particle, (whatever). Then could do it separately for the camera cards, and or use a laser to shine the intention on the lenses or whatever.
Then do some sort of double blind thingie and see if it makes a difference in how the particals act.
I'm actually serious about this and the idea comes from my reading a book called The Science of Real Magic by Tiller, a materials scientist at Stanford. Most of it was a bit dry, but I loved the idea of intentionally imprinting electronic devices. He calls them IIEDs. Very cool. I love stuff like this.
Seriously though, I think the camera does sort of "catch" the intentions of the person who put the camera in place, or something--maybe the experimenter. (A Buddhist, hmmmm. Good thinking!)
I don't know if these experiments would work out but they are worth trying.
Yes, I get really enthusiastic about things like this, probably because I am not able to consciously figure out anything about my "spirit guides" and things like that. My bad!