Well, there's this little thing called "evidence". If there is a life after death, it would be pretty consistent during near-death experiences. But the thing is, Christians who have NDE's meet Jesus. Muslims who have NDE meet Mohammed, and Buddhists meet the Buddha.
Okay, let's look at that.
The Babylonian Talmud was written about 500 AD, well after Christianity became the official religion of the Roman Empire. So it has no real value.
If you look at the historians closest to Jesus' life, it becomes a lot more questionable. The main ones that are cited are Tacitus and Josephus, and even they wrote a half-century after the event. Now, given we have no actual contemporary copies of Tacitus of Josephus. We have copies that were copied by Christian monks, centuries after the fact.
The passages about Jesus in Josephus are clearly add-ons by later Christian Scholars.
Tacitus is a bit more problematic. He mentions that Christians were persecuted by Nero for the Great Fire of Rome. Yet the passage looks like it was just added in there and don't really fit with the rest of the narrative about Nero.
Want more evidence?
Dio Cassius, the third great historian of the Early Empire, makes no references to Christians at all. While Suetonius says Claudius expelled the Jews from Rome because of the Instigations of one "Chrestus", he makes no mention of Christians in relation to the Great Fire, either.
FURTHERMORE, we have a letter from Pliny the Younger to Emperor Trajan, asking what to do with Christians in his province. Trajan responded with an effective "Don't ask, don't tell" approach towards them. Now, if these were the people who supposedly set fire to Rome 60 years earlier, Pliny sure as hell would know who they were, and Trajan wouldn't have been nearly so leniant.
