chiselray wrote:It may well be refuted down the track..it could certainly happen...certainly as it is right now it is a plausible theory that the BB is the reality of how the universe was created.But if new data comes into it,that may change..Earth flat then round eg eg eg so...lets all assume what we wish to believe in and see who is right in the next 600-whatever years.
Certain theories are subject to change, but when we have a sufficient level of evidence in its favour, significant change becomes incredibly unlikely.
For instance, the claim that the Earth is flat is not on par with the claim that it is a sphere. Today, we have sufficient evidence to be sure it is a sphere, back when we thought it was flat, it was just a logical guess based on absense of any real evidence either way.
As Tairaa states, the evidence for the Big Bang is sufficient that we can be confident it's not going to be rejected in the future. While the causes of the Big Bang may be debated and subject to future revision, it is highly unlikely the Big Bang theory itself will change greatly in the future to the extent we start to believe it never happened at all.
"All of our behavior can be traced to biological events about which we have no conscious knowledge: this has always suggested that free will is an illusion."
- Sam Harris