You're right. I forgot all about that. So it appears we do have pagan writers talking about the church in the 1st century. The fire was only 30 years after the death of Jesus.
We are back to definitions of evidence. I can't give you a photocopy of his birth certificate. However, as you have pointed out here there was a following of the man who would have been his contemporaries. They would have known whether or not he existed first hand.
Is it possible Tacitus was "edited" later on to include a little advertising for Christianity? Sure. It wouldn't surprise me at all. The problem with ancient history is always that what you are reading is copies of copies of copies of copies. Much of it is surmise. But the argument that Christianity was invented by some clever fellows rather than evolving, as is the case in most movements, just does not stand up. It is pure supposition. I think this is a situation in which the application of Occam is called for.
No, the account in Tacitus is pure bullshit inserted by later Christian writers.
Again, I point to the passage from Emperor Hadrian where "Christian" was used as a description for worshipers of Sarapis. Now, if the Christians REALLY had been blamed for the Roman fire, Hadrien would have known damned well who they were. he would have known they were quite different from the worshipers of Sarapis, which was a widespread cult that actually had reached Rome.
It would be like if the American President in 2050 didn't know the difference between Al Qaeda and the Rotary Club.
How's this for a more likely explaination- there were probably a lot of cults back then that called themselves "Christian", and they probably all worshipped their own version of the "God-Man". Until Constantine made it the official state religion in 303, and they needed to get their story straight. So they purged out all other religions, they purged any accounts of Jesus that didn't agree with the official one, and then they purged out Arianism and Monophysitism and all the other different interpretations.
Until they finally boiled it down to four Gospels that don't contradict each other too much if no one actually bothers to read them too closely.
I started questioning the bullshit of Christianity when I was 11. And frankly, after getting whacked over the knuckles by a nun's ruler too many times, I'm just not buying into any of the bullshit.
Give me real fuckin' evidence, or your boy's a fake, as far as I'm concerned.