OK. Conceding the value of one life-producing planet per Galaxy, how many galaxies do we estimate there are in the known, visible to us, Universe ?
Some have claimed over a trillion.
However you are conceding to something I did not claim.
My earlier statement was that the estimated number of planets in our galaxy capable of sustaining such carbon-based life is likely close to the experimentally known value of one. I did not imply by that statement that carbon-based life (intelligent or otherwise) exists on even one planet in every other galaxy in the known universe.