Hearing the opposed factions of opinion debate, gives some insight into who is more likely to be correct.
Those who believe the official story usually suggest that those who disagree with them are crazy, or believe in big foot, or need to take medication, generally they use personal abuse as a debating point.
Those who doubt the official story are more likely to use the laws of physics, logic, and probablity to make their case.
I know which I find more convincing.