And he described in some detail how this is done. You must remember, Rossi comes from a blue-collar background. His family heritage is one of blue-collar industrialist / entrepreneur types. He isn't a country bumpkin.
Edit: if you all haven't read An Impossible Invention by Mats Lewan, I highly recommend that you do. You will gain a much deeper insight into who Rossi is.
Sure.... and in case you or Mats or Rossi himself tells me that Rossi can walk on water, I will certainly believe