"S": succussion in "homeopathy" involves wacking the solute in its bootle against a book, and the the ultradilution experiments is a matter of briefly "vortexing" the solute (touchuing the vial to the vortex machine for perhaps 3 seconds)

AbouHaidar tested this assumption by labelling the "target" with radioactive P32, and indeed there is no substance in the higher dilutions.