no that is not what he said, and there is no argument about this. the scholars agree that Christ existed as an historical figure and that a major part of the scriptures was directly written by contemporaries. thus puns the caliber of (if he existed) and claims that no scripture has been written by a contemporary are idiotic and retarded, and the argument should have stopped right at the point where the scholars perspective is presented, and your friend should have simply corrected his statement instead of desperately fleeing to new arguments, some of which are equally faulty.That's what he said. Just replace "man of judea" with "jesus" and your claims are identical. Sounds like you are just trying to argue for sake of argument and it's not going anywhere.
Jesus did not exist is not the same as Jesus existed but the extraordinary part of his life cannot be validated by scholars.
the scripture was not written by contemporaries of Jesus is not the same as Paul never met Christ before his crucifixion.
so correct your information and if you want to discuss this subject use accurate and precise terms and definitions. period.
it does not matter, brownian motion is a very simple evidence to a very extraordinary notion. so is galileo dropping two objects from the leaning tower of pisa towards the discovery of how gravity acts similarly on objects of different masses, so is the discovery of density among many other things. all of these were accompanied with very simple evidences. the statement that extraordinary claims require extraordinary evidence is simply a catchy smoke screen. the reality is that there is some ordinary claims might require extraordinary evidence, while some extraordinary claims might simply have very ordinary evidence, and while some ordinary claims might possess no evidence and are not provable at all, all while being held true.Brownian motion is a phenomena that nobody could explain for almost a hundred years, yet easy to reproduce and verify. That's not "simple", but quite extraordinary. If we saw people walking on water every day and could reproduce it with same ease as brownian motion, and only explanation was divine intervention, then you bet that would give credence to the idea that Jesus walked on water as well.
so stop parroting and propagating such useless catch phrases otherwise you will be doing truth in all its dimensions a great disservice.